If the radius is 18 cm and the angle at center of circle is 120° then the area of sector is а. 382.4 сm2 b. 339.3 cm2 С. 350 cm2 d. 300 cm2 If the radius is 21 cm and the angle at center of circle is 140° then the length of the arc is а.42.23 cт b. 73.24 cm С. 51.31 ст d. 62.42 cm

If the radius is 18 cm and the angle at center of circle is 120° then the area of sector is а. 382.4 сm2 b. 339.3 cm2 С. 350 cm2 d. 300 cm2 If the radius is 21 cm and the angle at center of circle is 140° then the length of the arc is а.42.23 cт b. 73.24 cm С. 51.31 ст d. 62.42 cm

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter67: Analysis Of Trigonometric Functions

Section: Chapter Questions

Problem 4A: The sector of a circle has an area of 231.3 sq in. and a central angle of 6515'. What is the radius...

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Question

If the radius is 18 cm and the angle at center of circle is 120° then the area of sector is
a. 382.4 cm²
b. 339.3 cm2
С. 350 cm2
d. 300 cm2
If the radius is 21 cm and the angle at center of circle is 140° then the length of the arc is
a.42.23 cm
b. 73.24 сm
с. 51.31 cm
d. 62.42 cm

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