Question

What is the length of PR?

15
25°
P 5
E
1140
Q
25°
1140
X
21
R
F

Answer 1

Answer: yes it would be 7

Explanation:

Answer 2

7

Explanation:

Since the triangles are similar, we can use ratios

15 21

----- = ---------

5 PR

Using cross products

15 PR = 21*5

Divide each side by 15

PR = 21*5/15

PR = 7