Question

What is the value of s?

Answer 1

15 hope this helps

How I got there

Total number of degrees 180

add 59 + 91 = 150

180 - 150 = 30

30 divided by 2 = 15

Answer 2

180° = 59° + 91° + 2s
2s = 180° - (91°+59°)
2s = 180° - 150°
2s = 30°
s = 15°