Question

WX
is dilated by a scale factor of one half
2
1
​
to form start overline, W, prime, X, prime, end overline
W
′
X
′

. start overline, W, prime, X, prime, end overline
W
′
X
′

measures 23. What is the measure of start overline, W, X, end overline
WX
?

Answer 1

If W'X' = 23 and the dilation scale factor is 1/2, then W'X' = (1/2)·WX. So WX = 23 ÷ (1/2) = 23·2 = 46.