Answer:
20. is B (second one)
21. is A (first one)
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
5*2=10
2+2+2+2+2=10
Answer:
diddi please mark as brainlist
A semi circle is half of a circle, and since a circle is (pi)r^2, it would be 1/2 (pi) r^2. Since the radius is half the diameter, we would turn the 36 inches into 18 inches. So 18in is your radius. Plug it in and you've got it. :)