Waste less time on Facebook — follow Brilliant.
×

Properties of Circles

What is pi? If the area of a circle is 49π, what is its circumference? If a circle is inscribed in a square, what is the ratio of the areas of the circle and the square?

Area of Sector

         

In the above sector, the central angle is \( 0.76 \) radians and the radius is \( 8 \). What is the area of the sector?

View solution
View wiki
by Brilliant Staff

A circular sector with a radius of 10 has an area of 200. What is the central angle (in radians)?

View solution
View wiki
by Brilliant Staff

The above figure shows a quarter circle that is covered by a right triangle. If the radius of the circle is \( 16 \), what is the area of the shaded region?

View solution
View wiki
by Brilliant Staff

\(\Gamma\) is a circle with radius \(14\) and center \(O\). \(A\) and \(B\) are points on \(\Gamma\) such that the arc length \(\widehat{AB} = 14\). What is the area of sector \(AOB\)?

View solution
View wiki
by Brilliant Staff

A circular sector with central angle 5 radians has an area of 250. What is its radius?

View solution
View wiki
by Brilliant Staff
×

Problem Loading...

Note Loading...

Set Loading...