Question

∆ABC ～∆DEF , area ∆ABC = 64 cm2

, area area ∆DEF = 121 cm2. If EF =15.4 cm find BC.​

Answer 1

Answer:

Let ∆ABC ~ ∆DEF and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4 cm, find BC. We know that the ratio of areas of two similar triangles is equal to the ratio of the squares of any two corresponding sides. Hence, BC = 11.2 cm.

Answer 2

Answer:

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