Q20 of 62 Page 193

The perimeter of two similar triangles ΔABC and ΔDEF are 36 cm and 24 cm respectively. If DE = 10 cm, then AB is


Given: Perimeter (ABC) = 36 cm2, Perimeter (DEF) = 24 cm2 and DE = 10 cm


Perimeters of two similar triangles are in the ratio 36:24 = 3:2


We know that if two triangles are similar, then the ratio of the corresponding sides is equal to the


ratio of the corresponding perimeters.



Putting the values



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