If r=4cm and h= 4cm, what is the volume of the cone

volume cone = 1/3 pi r^2 h

volume cylinder = pi r^2 h

Step-by-step explanation:

1.  Volume = 1/3 x pi x r^2 x h = 12 X pi

2.  100 pi = 1/3 x pi x r^2 x 12

r^2 = 25

r = 5 cm

3.  volume = pi x 16 X 5 = 80 pi cubic meters

4.  400 pi = pi x r^2 X 4

r^2 = 100

r = 10 yards

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

answer: about 22.67

step-by-step explanation: