Area of Circles and Half Circles

How do you find the area of a circle?

Tags

CCSS.7.G.B.4

What is the perimeter of the semi-circle?

• 11 yd

• 17.27 yd

• 34.54 yd

• 28.27 yd

Tags

CCSS.7.G.B.4

The measure of the inside of a circle (always measured in square units)

• diameter

• radius

• circumference

• area

Half of the diameter is called the

• pi

• radius

• circumference

• area

Tags

CCSS.HSG.C.A.2

The measure of the inside of this circle is called: (HINT: It is not labeled on this circle)

• diameter

• radius

• circumference

• area

the radius of a circle is _______ the diameter

• half

• 2 times

• 3.14 times

• 10 times

Tags

CCSS.7.G.B.4

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

Tags

CCSS.7.G.B.4

What is the radius of this circle?

• 12cm

• 6cm

• 24cm

• 3cm

Tags

CCSS.7.G.B.4

What is half the size of a diameter

• Radius

• Chord

• Arc

• Center

What is twice as long as a radius

• Center

• Diameter

• Tanget

• Arc