Quandaries
and Queries
Who is asking: Student
Level: Middle
Question:
I want to know how to find the perimeter and area of a semi-circle and
a quarter-circle.
Hi,
You need to know the perimeter and area of a circle to complete this problem.
Perimeter of a circle is 2
r where r is the radius
Area of a circle is
A semi-circle is half of a circle so both the perimeter and the area are half the perimeter and area of a circle. A quarter-circle is one quarter of a circle so the perimeter and area will also be one-quarter the perimeter and area of the circle.
Penny