Asked by Ginate
What is the perimeter & area of the sector with 100 degrees angle and radius of 20cm?
Answers
Answered by
scott
the perimeter is two radii plus a section of the circumference
... the circumference section is ... 2 * π * r * (100 / 360)
the area is 100/360 of the whole circle ... π * r^2 * (100 / 360)
... the circumference section is ... 2 * π * r * (100 / 360)
the area is 100/360 of the whole circle ... π * r^2 * (100 / 360)