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Areas of Circles and Sectors
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....... are sections of a circle that are created by two radii and an arc.
Sectors
What is the area of this circle?
16Ï€
What is the area of this circle?
25Ï€
What is the area of this circle?
36Ï€
What is the radius of a circle with an area of 49Ï€?
7
Find the area of the shaded sector of circle O. The radius is 6 inches and the central angle is 100°. Express answer as an exact value
10Ï€
What is the area of the shaded region? Round to the nearest hundredth.
113.10
What is the area of the shaded region? Round to the nearest hundredth.
8.37
What is the area of the shaded region? Round to the nearest hundredth.
163.85
What is the area of the shaded region? Round to the nearest hundredth.
558.22
A circular table top has an area of 324 square inches. Which measurement is closest to the radius of the table top in inches?
10.2 in.
FIND THE SECTOR AREA OUTLINED IN BOLD
461.8 sq. cm.
Danielle wants to make a cookies for 3 friends. The radius of a cookie is 5 inches. If she wants to ice ALL 3 of the cookies, how many square inches of cookies must she cover with icing?
235.5 in^2
A circle has a circumference of 36Ï€ meters. What is the radius of the circle?
18 meters
Find the area of the shaded sector. Use 3.14 for pi. Round to the nearest tenth.
24.7 units^2
A region bounded by two radii of the circle and their intercepted arc is a _________
sector of a circle
Find the area of the dark blue sector shown at the left. The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units. Express answer to the nearest tenth of a square unit.
15.7 square units
Find the length of the bold arc.
61.3 ft
If Pacman's mouth, when open, is 70° and the radius of his mouth is 8mm, what is the exact area of the rest of Pacman's body?
(464/9)Ï€ mm^2
A sector with a radius of 10 cm has a central angle measure of 252°.
70Ï€cm^2
If a clock's face measures 14 inches across, how much area is between the minute and hour hands at 5 o' clock? (approximate pi to 3.14)
49.00 sq. in.
A circular window on a ship has a radius of 8 inches. What is the area of the window? Round your answer to the nearest hundredth.
201.06 in^2
A circular pool is surrounded by a circular sidewalk. The circular sidewalk is 3 feet wide. The diameter of the sidewalk and pool is 26 feet. What is the area of the sidewalk and pool?
169Ï€ or 314.2 ft^2
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