A circle contains a sector with an area of #75cm^2# and a central angle of #270°#. What is the radius of the circle to two decimal places?
2 Answers
Jul 31, 2018
Explanation:
Let
The Area of a sector having central angle
WE have,
Hence, by what is given,
Jul 31, 2018
Explanation:
A sector is a fraction of a circle.
The fraction can be determined in three ways:
In this case we are told that