Find the radius r of each circle if the area of the sector is 24.

Calculus
Tutor: None Selected Time limit: 1 Day

Oct 6th, 2015

Hello!

The area of a sector is a corresponding part of the circle area:

A = (pi*r^2)*(a/2pi) = r^2*(a/2),

where a is the sector's angle in radians.

Therefore r^2 = 2A/a = 48/a, r = sqrt(48/a).


ar = sqrt(48/0.7) = approx. 8,28.

b) 110 degrees is (pi/180)*100 = 5pi/9 radians,

r = sqrt[48/(5pi/9)] = approx. 5,24.

Please ask if something is unclear.
Oct 6th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 6th, 2015
...
Oct 6th, 2015
Dec 4th, 2016
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer