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Can I find solved Try These of Maths NCERT for Class-8?

The volume of a cylinder is 1232 cm2 and the circumference of its base is 44 cm. If it is open at one end, then what

is its surface area?

Answer both in 1 thread. because i can't ask again n again. thanking you in advance.

A solid cylinder has surface area of 462 sq cm.Its curved surface area is one third of its total surface area.find the volume of the cylinder.

_{A copper wire of length of 44cm is to be bent into a square and a circle. Which will have a larger area?}A river 2m deep and 45m wide is flowing at the rate of 3 km/h.Find the amount of water that runs into the sea per minute.

please explain experts (fig.11.1 in text book)

a rectangular park whose length is 30 m and width is 20 m.

Q- The parallel lines of a trapezium are 25 cm and 11cm ,while its non-parallel sides are 15 cm and 13 cm .Find the area of trapezium.

Thanking you in advance.

A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length is 1 m.

Ex-14 ( F) question-6 , 9 th part

Options:

1) 18 . 2) 20. 3) 10. 4) 15

Pls ANSWER WITH EXPLANATION.

The diameter of a roller is 84cm and its length is 120cm. It takes 500 complete revolutions to move once over to level a playground. Find the area of the playground in m

^{2}.EXPERTS PLZ ANWER MY QUESTION PLZ PLZ PLZ PLZ PLZ

The length,breadth and height of a room are 5m, 4m and 3m respectively. Find the cost of white washing the inner of the room and ceiling at the rate of Rs 50 per square metre.

find the number of coins,1.5cm in diameter and 0.2 cm thick,to be melted to form a right circular cylinder with a height of 10 cm and a diameter of 4.5cm.

if each edge of a cube is doubled,

1.how many times will its surface area increase?

2.how many times will it volume increase?

If the length of each edge of a cube is doubled, by how many times does its volume and surface area increase?

water is pouring into a cuboidal reservoir at the rate of 60 litres per minute. if the volume of the tank is 108m cube, find the number of hours it will take to fill the reservoir?

Pls do not refer any link.

find the area of a rhombus whose side is 6 cm and whose altitude is 4 cm. if one of its diagonal is 8 cm long, find the length of another diagonal.

the rain falls 10cm on a particular day. The rain water that fals on a roof 70m long and 44m wide was collected in a cylindrical tank of radius 14m, find:-

(a) Volume of the that falls on the roof.

(b)Rise of water level in the tank due to rain water

the diameter of the roller 120 cm long is 84 cm. if it takes 500 complete revolutions to level a playground, determine the cost of levelling at the rate of 30 paise per sq. m.plzz its urgent plzz give me fast ans...today is my test

The radius and height of a cylinder are in the ratio 5:7 and its volume is 550 cu cm . Find its radius?

find the side of a cube whose surface area is 600 cm

^{2}the rainfall recorded on a certAIN DAY WAS 5 c find the volume of water that fell on 2 hectare field

A solid iron rectangular block of dimensions 4.4m*2.6m*1m is cast into a hollow cylindrical pipe of internal radius 30cm and thickness 5cm.Find the length of the pipe.

please answer the question fast please the answer should be112m.

Water flows out through a circular pipe whose internal diameter is 2 cm, at the rate of 6 metre per second into a cylindrical tank , the radius of whose base is 60 cm. Find the rise in the level of water in30 minutes?

a rectangular strip 25cm

cm is rotated about the longer side .find the total surface area of the solid thus generated.X 7The lateral surface area of a hollow cylinder is 4224 cm

^{2}. It is cut along its height and formed a rectangular sheet of width 33 cm. Find the perimeter of rectangular sheet?A retangular swimming pool 30m*20m*10m is to be tiled.If each tile is 32 cm*20cm and costs Rs.0.40 , find the total cost

pls answer it fast

the answer should be Rs.10,000

a saree is 5 meter long and 1.3 meter wide. a border of width 25 centimeter is printed along all side .find the cost of printing the border at 1rupees per 100 centimeter

^{2.}The answer is 725cm2. How to do it?

The outer dimensions of a closed wooden box are 10cm by 8cm by 7cm. Thickness of the wood is 1cm. Find the total cost of wood required to make the box if 1cm

^{3}of wood costs Rs.2A iron pipe is 21 m long and its exterior diameter is 8cm.If the thickness of the pipe is 1cm and iron weight 8g/cm

^{3},find the weight of pipe?Find the cost of the rod at Rs 45 per kg. The metal rod weighs 10 grams per cu. cm.....

The diameter of a wheel of a bus is 90cm which makes 315 revolutions per minute. Determine its speed in kmph.

What is the answer of ncert maths book class 8, ch. MENSURATION pg 176, TRY THESe Q. 3 For future i would like to know where can i get the answers of try these of ncert book

the surface area of the six faces of a rectangular solid are 4,4,8,8,18, and 18 square centimeter. The volume of the solid , in cubic centimeter is ...

The base and corresponding altitude of a parallelogram are 10 and 12 cms.if the other altitude is 8 cms find the length of other pair of parallel sides.please help me with this question.

Thnx

The floor of a building consists of 3000 tiles which are rhombus shaped and each of its diagonals are 45 cm and 30 cm in length. Find the total cost of polishing the floor, if the cost per m

^{2}is Rs 4.verify euler's formula for cuboid prism of pentagon base,pyramid of square and pentagon base

The shape of a garden is rectangular in the middle and semi circular at the ends as shown in the diagram. Find the area and the perimeter of the garden [Length of rectangle is 20 − (3.5 + 3.5) metres]

Find the area of the lateral surface of a right circular cylinder, the perimeter of whose base is 11 cm and its height is twice the diameter.

experts pls answer asap

The lateral surface area of a hollow cylinder is 4224 cm square. It is cut along its height and formed a rectangular sheet of of width 33 cm. Find the perimeter of the rectangular sheet?

find the perimeter of a rhombus whose diagonals measure 12 cm and 16 cm respectively

sir, please give me the proper solution with explation of following questions?

Q.A box with lid is made of wood which is 3 cm thick. It's external length,breadth and hieht are 56 cm,39 cm and 30 cm respectively.Find the capacity of the box.Also find the volume of wood used to make this box.

Q.If V is the volume of cuboid of dimension a,b and c and S is it's surface area , then prove that:-

1/v =2/s [1/a +1/b +1/c]Find the altitude of rhombus whose area is 420cm(sq) and the perimerter is 140 cm..

^{3}WOOD^{.}IF IT BE 7CM LONG AND 4.5 HIGHT .FIND ITS BREADTH ?a suitcase with measure 80cm x 48cm x 24cm is to be covered with a tarpaulin cloth. How many metres of tarpaulin of width 96cm is required to cover 100 such suitcases?

mensuration powerpoint presentation

The area of a trapezium is 182cm square .its height is 14cm.the larger parallel side is longer than the other by 16cm .find the length of the parallel side!! Help me plzz

give the curved surface area,total surface area,volume(formula)-cube, cuboid, cylinder.give the perimeter,area (formula)-square, rectangle,circle, triangle, parallelogram, rhombus, trapezium????????^{2}How many buckets of capacity 15 litres can be filled from a tank 4 m long,2m broad,1.2m high,full of water?

The area of a courtyard is 3750m2. Find the cost of covering it with gravel to a height of 1cm if the gravel costs Rs 6.40 per cubic metre

The areas of 3 adjacent faces of a cuboid are 180 sq.cm , 96 sq. cm and 120 sq. cm . Find the volume of the cuboid ?Simplify - 1382400/96

what is the formula for area of circle??

The parallel sides of trapezium are 65 cm and 49 cm and each of the non parallel sides is 10 cm. Find the area of Trapezium.

A closed wooden box 80cm long,65cm wide and 45cm high, is made of wood 2.5cm thick.Find the capacity of the box and its weight if 100cm

^{3}of wood weighs 8gwhat percent of the lenght of each side of a cube gets decreased when its volume gets decreased by 48.8%?

the inner circumference of a circular track is 220 m. The track is 7 m wide everywhere. Calculate the cost of putting fence along the outer circle at Rs.2 per metre.what is difference between polygon and quadrilateral??plz answer faster.....

3 men or 5 women can do a work in 12 days. how long will 6 men and 5 women take to do it.

Find the height of a cuboid whose base area is 180 cm

^{2}and volume is 900 cm^{3}?