Find the circumference and the area of a circle with radius 9 km

Mathematics

2 answers:

Bess [88]3 years ago

4 0

Answer:

508.93

Step-by-step explanation:

The formula for circumference is 2 $\pi$ r^2 so if you plug it in it would be

2 times pie times the radius squared which would give you 508.93

NeX [460]3 years ago

3 0

Answer:

<u>Circumference= 56.52km Area=254.47km </u>

Step-by-step explanation:

To find the area of a circle with the radius, square the radius, or multiply it by itself. Then, multiply the squared radius by pi, or 3.14, to get the area.

The circumference = π x the diameter of the circle (Pi multiplied by the diameter of the circle).

Hope this helps

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