The angle of a sector of a circle is 90 degrees. Find the exact area of the sector if the circle has a diameter of 6 cm.

Question

This problem involves finding the area given the diameter. Sector of circles. 

Answer 1

A=(q/360)(pi)(r²)

A=(90/360)(∏)(3²)

A=(1/4)(∏)(9)

A=(9/4)(∏)

A=2.25∏