V=(1/3)hpir^2
lets say this is original, undoubled volume
so o=v=(1/3)hpir^2
so for new volume, or n, that is r to 2r, doubled radius
n=(1/3)hpi(2r)^2
n=(1/3)hpi4r^2
n=4((1/3)hpir^2)
remmember that o=(1/3)hpir^2
n=4(o)
it is 4 times the old one
Answer:
2
Step-by-step explanation:
The answer is b because 7 plus 2 equals 9 and a equals whole amount then his current amount is A-9
Answer: ABC is congruent to A’B’C because yo can nap ABC to A’B’C using a rotation of 180 degrees about the origin, which is A rigid motion
