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What is the area of a circle with diameter of 13 to the nearest tenth? (Use 3.14 for л.)

What is the area of a circle with diameter of 13 to the nearest tenth? (Use 3.14 for-example-1
User Curieux
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1 Answer

1 vote

Answer:

Question 2

Area of circle = 132.7

Question 3

Total area of 3 rugs = 37.68 square feet
(assuming 4 feet is the diameter since that part of the image has been cropped)

Explanation:

We are going to use the following information to answer questions 2 and 3

Area of a circle of radius r = πr² with π = 3.14

Radius = diameter/2

Question 2

Radius of circle = 13/2 = 6.5
Area = πr²

= 3.14 x (6.5)^

= 132.665
= 132.7 rounded to the nearest tenth

Question 3
Not sure whether the given figure of 4 ft is diameter or radius since that part of the image has been cropped.

I am going to assume it is the diameter.

If it is the diameter, 4 feet diameter = 2 feet radius

The area covered by each rug is 3.14 x 2² = 3.14 x 4 = 12.56 square feet

For 3 rugs total area = 3 x 12.56 = 37.68 square feet

User Bohdan Stupak
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