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Properties of Circles

What is pi? If the area of a circle is 49π, what is its circumference? If a circle is inscribed in a square, what is the ratio of the areas of the circle and the square?

Arc Length

         

In the above sector, the inscribed angle is \( 0.68 \) radians and the radius is \( 4 \). What is the arc length of the sector?

In the above sector, the inscribed angle is \( 0.84 \) radians and the radius is \( 5 \). What is the perimeter of the sector?

A circular sector of radius 8 has an arc length of 32. What is the inscribed angle (in radians) of the sector?

In the above sector, the inscribed angle is \( 5.64 \) radians and the radius is \( 9 \). What is the perimeter of the sector?

In the above sector, the inscribed angle is \( 5.64 \) radians and the radius is \( 9 \). What is the arc length of the sector?

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