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Question

AM and PN are the medians of two similar triangles, â–³ABC and â–³PQR respectively and Area of â–³ABCArea of â–³PQR = 925.

If AM = PO = 5 cm, find the value of 3 ON.


A
10 cm
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B
12 cm
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C
13 cm
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D
9 cm
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Solution

The correct option is A 10 cm

We are given two triangles ABC and PQR such that Area of ABCArea of PQR = 925.

Given: AM = PO = 5 cm

We know that ratio of areas of two similar triangles is equal to the ratio of the squares of their median.

So, area of ABCarea of PQR = AM2PN2 = 52(5+ON)2 = 925
55+ON = 35

25=15+3 ON

3 ON = 10 cm


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