2 years ago

The circumference of a circle is 9\piπ ft. find its radius, in feet.

Mathematics

1 answer:

Sliva [168]2 years ago

5 0

Answer:

r = 4.5 ft

Step-by-step explanation:

Circumference of circle = πd

πd = 9π ft

d = 9π ÷ π

d = 9 ft

Radius = d ÷ 2

= 9 ÷ 2

= 4.5 ft

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