Help with Geometry please :) Circles

Algebra
Tutor: None Selected Time limit: 1 Day

A circle has a radius of 2 yards and a central angle AOB that measures 145 degree. What is the area of sector AOB? Use 3.14 for pi and round your answer to the nearest tenth.

A. 12.6 yd^2

B. 10.1 yd^2

C.  5.1 yd^2

D. 2.5 yd^2 

Apr 24th, 2015

area of secter = central angle*pai*r^2

             = 145 * 3.14 * 2^2 ft^2

           =  (145 * 3.14 * 2^2)/(12*12) yd^2

     = 12.6 yd^2

option A

Apr 24th, 2015

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Apr 24th, 2015
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Apr 24th, 2015
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