Question

Triangle abc is similar to triangle def if area of triangle is 100cm and area of triangle def is 196cm and de is 7 cm find ab

Answer 1

Since, the two triangles ABC and DEF are similar,
Then, area of ABC/ area of DEF =
(AB/DE)^2
From the given data,
100/196 = (AB/DE)^2
10/14 = AB/7
So. AB=5 cm
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