Question

let the triangle ABC be similar to triangle DEF and areas 64cm^2 and 121 cm^2 respectively EF is equal to 15. 4 find BC​

Answer 1

Answer:

bc=3.025

ratio of areas of similar triangles=ratio of its corresponding sides.so

64/121=15.4/bc

64/121×10/154=1/bc

40/121=1/bc

40bc=121

BC=121/40

BC=3.025