Question

area of two similar triangles are 225 square cm and 81 square CM if a side of the smaller triangle is 12 CM then find the corresponding side of the bigger Triangle

Answer 1

let corresponding side be x
let smaller triangle be 1
and larger be 2
we know that A1/A2 =S1 ^2/S2 ^2
so 81/225=144/ x^2
x^2=225 x 144/81
x^2=400
x =20