138k views
6 votes
Given ZW=20. Answer the questions please. ​

Given ZW=20. Answer the questions please. ​-example-1

1 Answer

8 votes

a) Corresponding angles of similar figures are congruent, so
\angle B \cong \boxed{\angle Z}

b) Scale factor = (image)/(preimage). Since we are looking for ABCD to WZYX, this means that WZYX is the image and ABCD is the preimage. Thus, the scale factor is
(25)/(10)=\boxed{5/2}

c) Since the scale factor is 5/2,


(20)/(t)=\frac{5}[2}\\\\40=5t\\ \\ t=\boxed{8}

User Woss
by
6.1k points