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Byju's Answer
Standard X
Mathematics
Ratio of Area of Similar Triangles
In the given ...
Question
In the given figure, if
P
M
=
10
c
m
,
A
(
△
P
Q
S
)
=
100
s
q
c
m
,
and
A
(
△
Q
R
S
)
=
110
s
q
c
m
, then find the measure of
N
R
.
[2 Marks]
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Solution
Δ
P
Q
S
and
Δ
Q
R
S
have same base QS.
A
(
Δ
P
Q
S
)
A
(
Δ
Q
R
S
)
=
P
M
N
R
(1 Mark)
∴
100
110
=
10
N
R
∴
N
R
=
110
×
10
100
∴
N
R
=
11
c
m
(1 Mark)
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Q.
In the given figure, PM = 10 cm A(∆PQS) = 100 sq.cm A(∆QRS) = 110 sq.cm then Find NR.