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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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