Answer:
I think it’s 11.8
Step-by-step explanation:
The regular polygon has 9 sides
Step-by-step explanation:
<4 and <5
<4 and <1
The angles in both the pairs are adjacent to each other and make 180° together
Answer:
Addition, 83.6
Step-by-step explanation:
x - 72.6 = 11, x = 83.6
The grandson must add 72.6 to both sides to solve for x.
