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6 votes
Need help please its my last question

Need help please its my last question-example-1
Need help please its my last question-example-1
Need help please its my last question-example-2
User Aorlinn
by
3.6k points

1 Answer

8 votes

Given:

Radius of circle = 12 units

Area of sector = 24π sq. units.

Central angle = x

To find:

The value of x.

Solution:

We have,


r=12


A=24\pi


\theta = x

We know that, area of a sector is


A=(\theta )/(360^\circ)\pi r^2

Where,
\theta is central angle, r is radius.


24\pi=(x)/(360^\circ)\pi (12)^2


24\pi=(x)/(360^\circ)\pi (144)


(24\pi)/(144\pi)=(x)/(360^\circ)


(1)/(6)=(x)/(360^\circ)

Multiply both sides by 360 degrees.


(1)/(6)* 360^\circ=x


60^\circ=x

The value of x is 60 degrees.

Therefore, the correct option is A.

User Migmaker
by
3.6k points