Find the area of a sector with a central angle of 32° and a radius of 8.5 millimeters.?
I keep getting 6.4 but thats not one of the choices.. help please!!!
- Empire539Lv 71 decade agoFavorite Answer
The area of a sector is given by the equation A = ½r²θ, where θ is in radians.
Alternatively, if want θ in degrees, you could use the formula A = πr²(θ/360).
32° = 8π/45 rad
A = ½(8.5)²(8π/45) = 20.176
Make sure your calculator is in the appropriate mode.
- 1 decade ago
m= measurement of central angle
hope this helped :]