Homework Help: Math

Posted by Amy~ on Wednesday, May 25, 2011 at 10:51pm.

If the radius of a circle is 3960
the angle is 1.59
the arc length is 110

how would I find the hypotenuse?

I think it is 3960/cos1.59
but I know that you just don't automatically know that wouldn't it start out as cos1.59 = A/H (adjacent/ Hypotenuse)

Could someone explain to me the beginning of the steps that result in 3960/cos1.59 ? I'm trying to find the hypotenuse.

Math - Reiny, Wednesday, May 25, 2011 at 11:20pm
I don't understand your question.

It looks like you have a sector of a circle, with radius 3960 and central angle 1.59°
Since arc = rŲ, where Ų is the central angle in radians
arc = 3960(1.59π/180) = 109.89 which you gave as 110
If you draw the triangle in that sector wouldn't 3960 be the hypotenuse?
the x value would be 3960cos1.59° and the y value would be 3960sin1.59°

Answer this Question

Related Questions

math - Whats the difference between an arc [of a circle]'s length and ...
math - Okay, so there is circle S. There are two tangents of this circle that ...
algebra - of radius 54 meters subtended by the central angle 1/9 radian. s(arc ...
MATHS - What is Radius if Angle at centre is 150 and Arc length is 220 What is ...
math advanced functions - a) Determine the measure of the central angle that is ...
precalculus - The question is...find the radian measure of the central angle of ...
Trig - Find the radian measure of the central angle of a circle of radius r that...
math - the arc length and central angle of a circle are 10cm and 80degrees ...
Precalculus - A nautical mile equals the length of arc subtended by a central ...
Math - Given info: arc length = 65 m formula for arc length: s=rø s = 2pi...

For Further Reading

First Name:
School Subject:
Answer: