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What is the area of a circle if the radius is 9 m​

User Felsangom
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1 Answer

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Answer:

(approximately) 254.34 meters

Explanation:

Concepts:

  • Area is the amount of space a 2D shape has.
  • The area of a circle is the amount of space it has. The formula to find the area is πr^2, where r is the radius and π is often represented as 3.14 or 22/7.
  • The radius of a circle is a straight line from the center to the circumference of it. The radius is 1/2 of the diameter, meaning the diameter of a circle is a straight line passing from one side to the other side of the circle.

Solving:

Let's use the formula for area of a circle to solve.

1. Formula for Area of a Circle

  • πr^2

2. Exchange π for 3.14

  • 3.14 · r^2

3. Plug in the value of r (radius of circle) as 9

  • 3.14 · 9^2

4. Simplify

  • 3.14 · 81
  • 254.34

Therefore, the area of a circle when the radius is 9 meters is approximately 254.34 meters.

User Kruczkowski
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