Area of Circles Lesson

Area of Circles

By: Cheyanne Bliss

​A=πr²

r=radiud

​Area Formula

Example!

​

​Diameter= 16 inches

​Find the Area of the Circle

​A=πr²
A=π(16/2)²
A=π(8)²
A=64π inches²

d=16
r=d/2
r=16/2
r=8

Multiple Choice

What is the area of the circle?

• 144π ²cm

• 24π ²cm

• 12π ²cm

• 360π ²cm

Multiple Choice

What equation is true

d=diameter

r=radius

• r=d²

• r=d/2

• r=d-1

• d=r/2

Draw

Draw a circle and label the diameter and radius

Open Ended

Any questions or confusion about this lesson?