How to Calculate the Area of an 8-Inch Diameter Circle
Learn how to compute the area of an 8-inch diameter circle using the formula. Easy step-by-step guide for math enthusiasts.
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The area of a circle with an 8-inch diameter is found using the formula Area = πr². Here, the radius (r) is half of the diameter, so r = 4 inches. Plugging in the values, the area is π * 4², which equals 16π square inches, approximately 50.27 square inches.
FAQs & Answers
- What is the formula for the area of a circle? The area of a circle is calculated using the formula Area = πr², where r is the radius.
- How do you find the diameter from the radius? The diameter is twice the radius, so you can find it by multiplying the radius by 2.
- Can I use this formula for circles of any size? Yes, the formula works for any circle regardless of size, as long as you have the radius.
- What is the area of a circle with a diameter of 10 inches? The area of a circle with a 10-inch diameter is approximately 78.54 square inches, using the formula Area = πr² with r = 5.