Question 93

The areas of two similar triangles ΔABC and ΔPQR are 36 sq cms and 9 sq cms respectively. If PQ = 4 cm then what is the length of AB (in cm)?

Solution

For similar triangles

Ratio of sides = $$\sqrt{ \text(ratio of areas)}=\sqrt{36:9}=2:1$$

AB/PQ = 2/1

AB/4 = 2/1

AB = 8

So the answer is option C.

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