The area of the sector of a circle having a central angle of 120 is 24sq.cm

What is the radius of the circle?
What is the perimeter of the arc of the sector?

Question

The area of the sector of a circle having a central angle of 120 is 24sq.cm

What is the radius of the circle?
What is the perimeter of the arc of the sector?

anonymous · Answer

how many radians is 120 degrees?

anonymous · Answer

$A_{sector}=\pi\theta$

anonymous · Answer

where $\theta$ is in radians

anonymous · Answer

Area of the sector: 1/2pi r^2 [	heta \]

anonymous · Answer

oh yeah, sorry.  length of a segment is what i wrote

nincompoop · Answer

you already have the area, plug and chug

anonymous · Answer

wrong reply, sorry :) 24 cm^2 = 1/2pi r^2 120 deg (pi/180)

anonymous · Answer

$A_{sector}=\frac{\theta}{2}r^2$

anonymous · Answer

then, square root :) you have an answer for no. 1.

nincompoop · Answer

you're looking for r so isolate it and then square root

anonymous · Answer

Perimeter of arc sector: r(2+theta)

nincompoop · Answer

I don't think she's following... LUL it's finals time. we shouldn't even be helping at this point 
it beats the purpose of learning and it is not fair to those who study arduously and those who fail