Question

What is the degree measure of an arc 4 ft. long in a circle of radius 10 ft

Answer 1

Wanna Put Medal For the Question...
how to put that?

Answer 2

Find the Circumference of the circlle
C=2*pi*r

C=2*pi*10=20*pi
create a proportion 20pi is to 360 degrees

as 4pi is to x degrees

20*pi/360=4*pi/x
solve for x

x=360*4*pi/(20*pi)=72 degrees

Answer 3

\[\frac{ arclength }{ circumference }=\frac{ degreemeasure }{ 360 }\]
in simpler term
@malachip