trig
posted by tiana .
in a circle of radius 26, find the length of the arc spanned by a central angle of pi/4 radians. round your answer to 2 decimal places. use 3.1416 as an approx for pi.

Recall that C = rθ
Remember that for a whole circle, θ=2π, so C = 2πr
Here, we have r = 26, θ=π/4
c = 26 * π/4 = 13/2 * π = 20.42
Respond to this Question
Similar Questions

Math/Trig
Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth. 
Math/Trig
Find the radius of a circle with a central angle of pi/7 and a length of the intercepted arc equal to 7.7 cm. Round your answer to the nearest tenth. 
trig
find, to the nearest tenth of an inch, the length of the arc intercepted by a central angle of (4pi)/3 radians if a radius of the circle is 22 inches long 
Math
The arc length of a circle created by an angle of pi/3 radians is 2.5 cm. The radius of the circle is approx... a. o.419 cm b. 2.387 cm c. 1.783 cm d. 0.581 cm Please explain how you got the answer. Thanks! :) 
maths
an arc of a circle subtends a central angle of 5pi/6 radians.if the radius of the circle measures 10.6cm, determine the approx measure of the arc leanth 
math advanced functions
a) Determine the measure of the central angle that is formed by an arc length of 5 cm in a circle with a radius of 2.5cm. Express the measure in both radians and degrees, correct to one decimal place. b) Determine the arc length of … 
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. 
Math
Find the radius of the circle if an arc of length 5 ft on the circle subtends a central angle of 135°. (Round your answer to two decimal places.) 
Precalculus
The arc corresponding to a central angle of 35 degrees in a circle of radians 10 feet measures _____ feet. Round your answer to two decimal places. 
Physics
We can measure angles in degrees or radians. When studying angular motion, we will tend to use radians. If you are looking at a portion of a circle, the angle in radians can be calculated by dividing the arc length by the radius of …