Question

ABC is dilated by a factor of 1/2 to produce A'B'C.What is B'C', the length of BC after dilation?What is the measure of A' ?

Answer 1

The length of B'C' is computed as follows:

B'C' = factor of dilation * BC

B'C' = 1/2*16

B'C' = 8

Dilation doesn't change the measure of the angles of the original shape, then:

m∠A = m∠A' = 28°