Q28 of 186 Page 263

ΔABC ~ ΔDEF such that AB = 9.1 cm and DE = 6.5 cm. If the perimeter of ΔDEF is 25 cm, what is the perimeter of ΔABC?

Since the ABC ∼ DEF


So the sides of the triangles are in the same ratio be k


= = = K………….1


= = K


K = 1.4


= K


= 1.4


= 1.4 × 25


= 35 cm

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