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The diameter of a circle is 10 meters. What is the area of the circle? (Use 3.14 for Pi and round to the nearest tenth.

User Curtis M
by
8.1k points

2 Answers

7 votes

Answer:

a=78.5 meters^2

Explanation:

First, we have to find the radius

r=d/2

r=10/2

r=5

Substitute 5 in for r in the area formula

a=
\pir^2

a=
\pi5^2

a=
\pi25

Substitute 3.14 in for pi

a=25*3.14

a=78.5 meters^2

Hope this helps!

User Gabriel Ben Compte
by
8.3k points
3 votes

The answer is 78.5 you can get this by multiplying pi by the radius which is 5 then square it and you get 78.5

User Vijesh Venugopal
by
8.4k points

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