Question

ABC ~DEF and there area be respectively 36cm square 9cm square. If EF = 3CM find Bc

Answer 1

we know that,

in two similar triangles for ex- ABC and DEF

ar( ABC )/ ar( DEF) = BC2/EF2
36/9 = BC2/(3)2
36/9 = BC2/9
BC2 = 36
BC = √36 = 6 cm

therefore BC = 6 cm

hope it help

Answer 2

hope it helped use the theorem bpt