NCERT Solutions
Board Paper Solutions
Ask & Answer
School Talk
Login
GET APP
Login
Create Account
Popular
Latest
Expert Answers
ALL
Ghosh Brothers
Subject: Maths
, asked on 26/1/18
1. If
m
1
a
n
d
m
2
are the roots of the equation
x
2
+
3
+
2
×
+
3
-
1
=
0
, then find the area of the triangle formed by the lines y =
m
1
x
, y =
m
2
x
a
n
d
y
=
c
.
2. If
x
1
,
x
2
,
x
3
are in A.P. and
y
1
,
y
2
,
y
3
are in A.P. Prove that points
x
1
,
y
1
,
x
2
,
y
2
and
x
3
,
y
3
are collinear.
3. A(1, 4), B(-1, 2) and C(5, -2) are the vertices of a
∆
ABC. Find the co-ordinates of the point where the right bisector of BC intersects the median through C.
6. Prove that in a right angled triangle the mid point of the hypotenuse is equidistant from vertices.
Answer
1
Aishwary
Subject: Maths
, asked on 26/1/18
Q-11 both parts fast i am a paid member
Q.11. If (- l, 3), (1, - 1) and (5, 1) are the vertices of a triangle. Find the length of median through first vertex.
OR
The vertices of triangle (x, 1), (y, 2) and (- 3,
z
2
). Find the condition that centroid may lie on y-axis.
Answer
3
Sahil Haque
Subject: Maths
, asked on 23/1/18
The angle of elevation of the top of the tower from two points A and B present in the same line and at a distance of 'a and b' respectively from the foot of the tower, are complementary. Prove that height of the tower is
a
b
.
Answer
1
R J
Subject: Maths
, asked on 21/1/18
7,8,9
Answer
5
R J
Subject: Maths
, asked on 21/1/18
26,27,28 pls answer ASAP
Answer
7
Champ Jee
Subject: Maths
, asked on 21/1/18
If the vertices of a traingle have integral coordinates, prove that the triangle cannot be equilateral.
Solve it and what is integral coordinates?
Answer
1
Abhishek
Subject: Maths
, asked on 16/1/18
Q.18. If the points A (- 2, b ), B (a, b) and C (4, - 1) are collinear and a - b = 1, find the values of a and b.
Answer
4
Pooja Agarwal
Subject: Maths
, asked on 16/1/18
Solve this:
A(6, 1), B(8, 2), C(9, 4) are three vertices of a parallelogram ABCD. If E is the midpoint of DC, find the area of the triangle AED.
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
Q. In what ratio point P(2,-5)divide the line segment joining A(-3,5) and B (4,-9)
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
8. Find the mean of the following frequency distribution by using stepdeviation method.
Classes
Frequency
0-10
7
10-20
12
20-30
13
30-40
10
40-50
8
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
Q. Find a point on y-axis which is equidistant from A (6,5) and B (-4,3)
Answer
1
R J
Subject: Maths
, asked on 13/1/18
From where does (3q+1)(3q+2) become 2r
Answer
2
Komal Gupta
Subject: Maths
, asked on 13/1/18
Q.16 In what ratio does the y-axix divide the line joining the points (-4,5) and (8,3) . Also, find the point of intersection.
Answer
3
Lakshmi Sridhar
Subject: Maths
, asked on 13/1/18
Q
5
.
L
e
t
P
S
b
e
a
m
e
d
i
a
n
o
f
t
h
e
t
r
i
a
n
g
l
e
P
Q
R
w
i
t
h
v
e
r
t
i
c
e
s
P
2
,
2
,
Q
5
,
-
1
,
R
7
,
3
.
I
f
T
i
s
t
h
e
p
o
i
n
t
1
,
-
4
t
h
e
n
S
T
i
s
p
e
r
p
e
n
d
i
c
u
l
a
r
t
o
a
P
Q
b
Q
R
c
R
S
d
P
S
Answer
3
Lakshmi Sridhar
Subject: Maths
, asked on 13/1/18
Q
6
.
I
f
t
h
e
p
o
i
n
t
s
k
,
k
+
2
,
2
k
,
4
k
-
1
,
k
-
1
,
k
a
r
e
c
o
l
l
i
n
e
a
r
,
t
h
e
n
f
i
n
d
t
h
e
v
a
l
u
e
s
o
f
k
.
Answer
1
Prev
6
7
8
9
10
Next
What are you looking for?
2. If are in A.P. and are in A.P. Prove that points and are collinear.
3. A(1, 4), B(-1, 2) and C(5, -2) are the vertices of a ABC. Find the co-ordinates of the point where the right bisector of BC intersects the median through C.
6. Prove that in a right angled triangle the mid point of the hypotenuse is equidistant from vertices.
Q.11. If (- l, 3), (1, - 1) and (5, 1) are the vertices of a triangle. Find the length of median through first vertex.
OR
The vertices of triangle (x, 1), (y, 2) and (- 3, ). Find the condition that centroid may lie on y-axis.
Solve it and what is integral coordinates?
A(6, 1), B(8, 2), C(9, 4) are three vertices of a parallelogram ABCD. If E is the midpoint of DC, find the area of the triangle AED.
Q. Find a point on y-axis which is equidistant from A (6,5) and B (-4,3)