Find the diameter of a circle with area of 380.1 m²

Question

Mathematics

Abe

20 May, 04:46

Find the diameter of a circle with area of 380.1 m²

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Answers (2)

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Justice Casey · Answer 1

Diameter=22m

Step-by-step explanation:

A=pi*r²=pi*d²/4, where r is the radius, and d=2r is the diameter.

d²=4*A/pi=4*380.1/3.14=484m²=22²m².

Thus d=22m

Ibrahim Vang · Answer 2

Radius = 11

Circumference = 69.115

Diameter = 22

Step-by-step explanation:

First you have to take the area and solve for the circumference, after find the radius. Once you have that you multiply that by 2 since the radius is half of the diameter.