NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Devesh Kumar Biswal
Subject: Maths
, asked on 5/1/18
Please solve question 13
$13.Infigure(nottoscale),thepointsM,R,N,S,Qareconcyclic.Find\angle PQR+\angle OPR+\angle NMS+\angle OSN,if\text{'}O\text{'}iscentreofcircle.$
Answer
1
Salwa
Subject: Maths
, asked on 4/1/18
What is concycli
Answer
1
Harsh Gujrani
Subject: Maths
, asked on 4/1/18
Q20
$20.PQandRSare2parallelchordstoacirclewhosecentreisOandradiusis10cm.\phantom{\rule{0ex}{0ex}}IfPQ=16cmandRS=12cm.Findtheperpendiculardis\mathrm{tan}cebetweenPQandRS\phantom{\rule{0ex}{0ex}}ifthelieonsamesideofcentre.$
Answer
1
Ayushi Singhal
Subject: Maths
, asked on 4/1/18
Please solve question number 4 , it's urgent please solve it
Answer
1
Devesh Kumar Biswal
Subject: Maths
, asked on 4/1/18
Please solve question 4
4.
In a cyclic quadrilateral ABCD sides AB and DC produced to meet at points P and AD and BC produced to meet at point Q (both P and Q are outside the circle). Find the value of
$\angle PTQ$
where PT and QT are the bisectors of
$\angle APDand\angle AQB$
respectively.
Answer
1
Devesh Kumar Biswal
Subject: Maths
, asked on 4/1/18
Please solve question 28
Q.28. In figure. M is the mid-point of arc APB. Show that
$\angle BOA=4\times \angle BAM$
.
Answer
2
Sindhuja
Subject: Maths
, asked on 3/1/18
The sum of either pair of opposite angles of a cyclic quadrilateral is 180 theorem 10.11
Answer
1
Sindhuja
Subject: Maths
, asked on 3/1/18
Can any one explain about theorem 10.9 with proof
Answer
2
Shreyas
Subject: Maths
, asked on 2/1/18
If the area of circle is equals to its perimeter what will be measure of its radius?
Answer
2
Harsh Sethi
Subject: Maths
, asked on 2/1/18
Q). O is the centre and AE is the diameter of the semi circle ABCDE. If AB = BC and
$\angle AEC=50\xb0$
, then find angle CBE, angle CDE, angle AOB. Prove that BO is parallel to CE.
Answer
1
Devesh Kumar Biswal
Subject: Maths
, asked on 2/1/18
Please slove question 18
Q18. Two circles of equal radii cut each other at P and Q, so that the centre of one lies on the other. A straight line through P cuts the circle again at A and B. Prove that
$\u2206$
QAB is equilateral triangle.
Answer
1
Yakini Jain
Subject: Maths
, asked on 1/1/18
If a diagnol of a cyclic quardilateral and diametre of a circle passing through the verticles of the quardilateral are same. Then prove that the quardilateral is a rectangle
Answer
1
Harsh Sethi
Subject: Maths
, asked on 1/1/18
In fig , O is the centre of the circle and angle OBA=60 degree, then find angle ACB.
Q. In fig, O is the centre of the circle and angle OBA = 60°, then find angle ACB.
Answer
1
Vedika
Subject: Maths
, asked on 1/1/18
if a line segment joining mid points of two chords of a circle passes from the centre of the circle prove that the two chords are parallel to each other
Answer
1
Devesh Kumar Biswal
Subject: Maths
, asked on 1/1/18
Please solve question 31 -
ABCD is a rectangle inscribed in a semi circle. If the length and the breadth of a rectangle are in the ratio 2:1 , what is the ratio of the perimeter of the rectangle to the diameter of the semi circle.
Answer
2
Prev
4
5
6
7
8
Next
What are you looking for?

$13.Infigure(nottoscale),thepointsM,R,N,S,Qareconcyclic.Find\angle PQR+\angle OPR+\angle NMS+\angle OSN,if\text{'}O\text{'}iscentreofcircle.$

$20.PQandRSare2parallelchordstoacirclewhosecentreisOandradiusis10cm.\phantom{\rule{0ex}{0ex}}IfPQ=16cmandRS=12cm.Findtheperpendiculardis\mathrm{tan}cebetweenPQandRS\phantom{\rule{0ex}{0ex}}ifthelieonsamesideofcentre.$

4. In a cyclic quadrilateral ABCD sides AB and DC produced to meet at points P and AD and BC produced to meet at point Q (both P and Q are outside the circle). Find the value of $\angle PTQ$ where PT and QT are the bisectors of $\angle APDand\angle AQB$ respectively.

Q.28. In figure. M is the mid-point of arc APB. Show that $\angle BOA=4\times \angle BAM$.

Q18. Two circles of equal radii cut each other at P and Q, so that the centre of one lies on the other. A straight line through P cuts the circle again at A and B. Prove that $\u2206$QAB is equilateral triangle.

Q. In fig, O is the centre of the circle and angle OBA = 60°, then find angle ACB.

ABCD is a rectangle inscribed in a semi circle. If the length and the breadth of a rectangle are in the ratio 2:1 , what is the ratio of the perimeter of the rectangle to the diameter of the semi circle.