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Because the area of a circle is A = pi * r2, in this case r = 64.
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∙ 12y ago
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What is the surface area of a cylinder that has a radius of inches and a height of inches?
Its complete surface area = (2*pi*radius squared)+(2*pi*radius*height) in square inches
What is the area of a circle radius equal to 1?
The area of a circle is pi times (radius squared) Thus if radius is one inch then area is (pi) times (1) times (1) = pi = 3.1416 inches squared
Area of a circle with 2 inch diameter?
In a circle, Area = pi times radius squared: A = (pi)(r^2) Since the diameter equals 2 inches, the radius is one inch: A = (pi)(1^2) A = pi = 3.14 inches squared
What is the circumference and area of a circle with a radius of 3 inches?
Circumference: 2*pi*3 = 6*pi inches Area: pi*3 squared = 9*pi square inches
How many square inches are in a twelve inch circle?
The area of a circle is pi times the radius squared. If the diameter is 12 inches, the radius is 6 inches. Six squared is 36. If pi is 3.14159, the area is approximately 113.1 square inches. This is a true statement
What is the area of a circle whose radius is 12 inches?
Area = pi*r2 Area = pi(12 inches)2 = 452 inches squared ================
What are the inches squared in a circle with a radius of 7 inches?
Area = pi*r^2 = 153.9 square inches.
How do you find the radius and area with circumference 2 pi inches?
you divide circumference by 2 pi, square that value, and multiply by pi, making the area pi inches squared
How many square inches in a 7 circle?
Area of a circle: pi*radius squared
How many square inches in a 12 circle?
Area of a circle: pi*radius squared
How do you determine the circular area of a lawn?
pi radius squared. (radius squared, then multiply by pi.)
How many square inches are in a 4 inch circle?
Area of circle in square inches = pi*radius squared
