Trig

posted by .

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

  • Trig -

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

Respond to this Question

First Name
School Subject
Your Answer

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 the sector, given a central angle of 55degrees and a radius of 5.7 in. Round your answer to the nearest tenth.
  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

    Find the area of a sector with the given central angle θ in a circle of radius r. θ = 90°, r = 6 cm
  9. 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.
  10. precalc

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

More Similar Questions