# Trig

posted by Julianne

Find the measure of the central angle, in radians, given the area of the sector as
22.6 cm2 and a radius equal to 3.7 cm

1. Damon

total area = pi r^2 = pi(3.7*2) = 43
22.6/43 = .5255
.5255 *2 pi = 3.3 radians

## Similar Questions

1. ### trigonometry

please check my answers. 1.Find the area of the sector of a circle. r=11.8cm, theta-pi/7 radians I got 31.2cmsquared 2.Find the radius of a circle in which a central angle of pi/6radian determines a sector of area 76square meters. …
2. ### trig

In a circle of radius 12 inches, a sector is formed by a central angle of pie/4 radians. Find the area of the sector to the nearest hundredth of a square inch.
3. ### Math/Trig

Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.
4. ### Pre Calculus

Find the measure of the central angle, in radians, given the area of the sector as 22.6 cm2 and a radius equal to 3.7 cm. Round your answer to the nearest tenth.
5. ### trig

given a central angle of 66 degrees find the area of a sector in a circle of radius 12.1 inches
6. ### trig

a. A sector that has been cut out of circular plastic sheet which has a circumference of 12.31 m. If the central angle of the sector is 1/4 of a revolution, find the area of the sector.
7. ### TRIG HELP ASAP

I really need help on this problem. A sector has area of 15 in^2 and central angle of 0.2 radians. Find the radius of the circle and arc length of the sector
8. ### trig

a central angle intercepts an arc on a circle equal in length to the diameter of the circle. find the measure, in radians, of the central angle.
9. ### precalc

Find the area of a sector and arc length whose central angle is 0.5 radians and a radius of 10 inches.
10. ### Algebra 2

If the arc length of a sector in the unit circle is 3π/2 what is the measure of the angle of the sector?

More Similar Questions