Answer:
WR = 26
Step-by-step explanation:
Givens
UT = 10
VS = 18
WR = ??
Formula
(WR + UT) / 2 = VS
Solution
Substitute
(WR + 10) /2 = 18
Multiply both sides by 2
(WR + 10/2 * 2 = 18 * 2
Do the multiplication
WR + 10 = 36
Subtract 10 from both sides
WR + 10 - 10 = 36 - 10
WR = 26
