Homework Help: trig

Posted by Amber on Tuesday, July 3, 2012 at 9:51am.

Find the radius of a circle which a 59-foot chord subtends an angle of 12degrees at the center.

I Just Want To See The Illustration. I Can Handle The Rest. Thank You In Advance =)

trig - bobpursley, Tuesday, July 3, 2012 at 9:59am
Connecting the center of the circle with the 2 ends of the chord makes an isc.. triangle.
Half of that is a right triangle. The angle at the center of the circle is 39.1º and 1/2 the chord is 59.2 cm.
59.2 = r*sin(12/2)
solve for r.

Answer this Question

Related Questions

Geometry - How would you solve these? The radius of a circle is 34 meters long, ...
geometry - suppose the diameter of a circle is 20in. long and a chord is 16in. ...
Math - In a circle , the radius is 68 units and a chord of the circle is 120 ...
Math - In a circle , the radius is 68 units and a chord of the circle is 120 ...
trig - An arc subtends an angle 15 degrees at the centre of the circle. If the ...
Precalculus - The figure shows part of a curve traced by a point on the ...
geometry - The radius of a circle is 34 meters long,and a chord of the circle is...
math 30 Trig - A central angle subtends an arc of 35 cm. If the radius of the ...
geometry - If a chord 10 inches long is 5 inches from the center of a circle, ...
Maths - AB is a chord with centre O and radius 4 cm. AB is of length 4 cm and ...

For Further Reading

First Name:
School Subject:
Answer: