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1 A sector of a circle with angle 1.2 radians has area 54 cm². Find the radius of the circle.

1 A sector of a circle with angle 1.2 radians has area 54 cm². Find the radius of the circle.

Mathematics For Machine Technology
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter11: Addition And Subtraction Of Decimal Fractions
Section: Chapter Questions
Problem 11A
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EXERCISE 4C 1 A sector of a circle with angle 1.2 radians has area 54 cm². Find the radius of the circle. The perimeter of the sector shown in the diagram is 28 cm. Find its area. 2 6 cm N 1.6 rad M 3 A sector of a circle with angle 162 ° has area 180 cm². Find the radius of the circle. Find the area of the shaded region. 4 45° 3 cm 5 Points P and Q lie on the circumference of the circle with centre Q and radius 5 cm. The
Transcribed Image Text:EXERCISE 4C 1 A sector of a circle with angle 1.2 radians has area 54 cm². Find the radius of the circle. The perimeter of the sector shown in the diagram is 28 cm. Find its area. 2 6 cm N 1.6 rad M 3 A sector of a circle with angle 162 ° has area 180 cm². Find the radius of the circle. Find the area of the shaded region. 4 45° 3 cm 5 Points P and Q lie on the circumference of the circle with centre Q and radius 5 cm. The
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