Calculating the percentage of a sector from an angle

Practice Questions

GMAT Quantitative Reasoning › Calculating the percentage of a sector from an angle

Questions

6

1

What percentage of a circle is a sector if the angle of the sector is $27^{\circ}$ ?

2

What percentage of a circle's total area is covered by a sector with an angle of $54^{\circ}$ ?

3

If a sector has an angle of $18^{\circ}$ , what percentage of the circle's area is covered by the sector?

4

Consider the Circle :

Circle3

(Figure not drawn to scale.)

Suppose sector covers an area of $\small 27 \pi:m^2$ . What percentage of the area of the circle does sector cover?

5

A sector of a circle has a central angle equal to 45 degrees. What percentage of the circle is comprised by the sector?

6

Circle T represents a round birthday cake. If the first slice will have a central angle of degrees, what percentage of the total cake is in the first slice?

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