Question
The areas of two similar triangles ΔPQR and ΔXYZ are
12.96 cm2 and 635.04 cm2 , respectively. If QR = 2.9 cm, then the length (in cm) of YZ equals:Solution
Thought for a few seconds Area ratio (XYZ : PQR) = 635.04 ÷ 12.96 = 49 Side ratio = √49 = 7 YZ = 2.9 × 7 = 20.3 cm
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