Question

5.
Areas of two similar triangles are 225 sq.cm. 81 sq.cm. If a side of the smaller
triangle is 12 cm, then find corresponding side of the bigger triangle.
DEG are equilateral triangles. If A(AABC): A (A DEF) = 1.2​

Answer 1

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Answer 2

Step-by-step explanation:

since two triangles are similar,

area of smaller triangle = ( side of smaller ) ^2

area of bigger triangle ( side of bigger )^2

81 = (12) ^2

225 (x) ^2

9 = 12

15 x

9 = 1

15×12 x

15×12 = x

9

5×4 = x

x = 20 , side of bigger is 20 cm