Answer:
72 degrees
Step-by-step explanation:
180-108=72
where I got 180: a supplementary angle is 180 degrees
18 divided by 60 = 0.3
0.3 x 100 = 30
18 is 30% of 60
Everything about number one is because it's a half of circle so its area = 1/2 ¶r^2 and its perimeter = ¶r
<span>1, 2, 4, 5,10, and 20.</span>
5n + 4 = 39
5n = 39 -4
5n = 35
n = 35:5
n = 7