A small triangle of area 20 cm² has sides in ratio 2 : 3 to a similar larger one. The larger area is
A45 cm²
B40 cm²
C60 cm²
D30 cm²
Answer & Solution
Correct answer: A. 45 cm²
Areas scale as 4 : 9, so the larger area is 20 x 9/4 = 45 square centimetres.
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