A clock face has a radius of 8 inches. What is the circumference and area of the clock face? Round your answer to the nearest hundredth.
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To find the circumference of a circle, you can use the formula C = 2πr, where C is the circumference and r is the radius.
Let's plug in the given radius value of 8 inches into the formula:
C = 2π * 8
Now, let's calculate the circumference:
C = 16π
To find the approximate numerical value, we can use the approximation π ≈ 3.14:
C ≈ 16 * 3.14
C ≈ 50.24
Therefore, the circumference of the clock face is approximately 50.24 inches, rounded to the nearest hundredth.
To find the area of a circle, you can use the formula A = πr^2, where A is the area and r is the radius.
Let's plug in the given radius value of 8 inches into the formula:
A = π * 8^2
Now, let's calculate the area:
A = 64π
Using the approximation π ≈ 3.14:
A ≈ 64 * 3.14
A ≈ 201.06
Therefore, the area of the clock face is approximately 201.06 square inches, rounded to the nearest hundredth.
C = pi*d = 3.14 * (2*8) = ?
A = pi * r^2 = 3.14 * 8^2 = ?