Asked by Jennifer

An Arc of length 6 cm subtends a 80 degree angle in a circle. What is the radius of the circle? Also what is the area of that sector?

What I have so far:

S=R*80 degree
S= R*4pi/9
6 cm= r* 4pi/9
R=6/4pi/9
R= 6*9/4pi
R=54/4pi

HELP!
Answered by bobpursley
r=6/(4PI/9)=54/(4PI)=27/(2PI)

area of sector=PI r^2(360/80)=
= PI(6^2)(9/2)=PI18*9 check that.
Answered by Gemma
Answer the following
Answered by Gemma
Find the arc length and area of a sector and a circle if the arc measure is 80• and the length of the radius is 6 cm.
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