Answer:
12
Step-by-step explanation:
Answer:

Step-by-step explanation:
Cosine is the ratio of the side adjacent to the angle and the right triangle hypotenuse.
B =
= 
C=2pir
20pi=2pir
20pi/2pi=2pir/2pi
R=10
Height=10/2=5
Two circles surface areas is
2*pir^2
2pi10^2
2*100pi
200pi
The cylindrical part is
2pirh
2pi*10*5
100pi
Add 100pi+200pi=300pi
Answer:
20
Step-by-step explanation:
Technically cats only have one life even though they can survive falls and such
Answer:
4 rectangles are inside the rectangle the other ones are squares
Step-by-step explanation: