Answer:
The length of the new radius will be 4 feet
PROOF: (1/2)(8)=4 ft
.
Answer:
The new circumference will be 8 times the original circumference
PROOF:
(1) Original
=pi*(1/2)
=1/2pi ft.
(2) New One.
=pi(4)
=4pi ft.
So, 4pi/(1/2)pi=8
.
Answer:
The new area will be 64 times the original area
PROOF: 8^2=64
.
Answer:
The new area will be 16π square feet
PROOF:
r=4ft
a=pi(4)^2
a=16pi ft^2
.
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Hope This Helps <3
