Circumference and Area of a Circle - Mr. Cao

Does this picture show the radius or diameter of a circle?

• Radius

• Diameter

Does this picture show radius or diameter?

• Radius

• Diameter

What is the relationship between radius and diameter?

• Radius is a third of the diameter

• Radius is twice the diameter

• Radius is half the diameter

• Radius is three times the diameter

Tags

CCSS.7.G.B.4

• 3.14

• 3.15

• 3.13

• 31.4

Tags

CCSS.HSG.GMD.A.1

What is circumference?

• The distance around a circle

• The space inside a circle

• The distance around a square

• The space inside a square

Which two formulas are used for circumference of a circle?

Tags

CCSS.7.G.B.4

Find the circumference of the circle

Tags

CCSS.7.G.B.4

Find the circumference of the circle

Tags

CCSS.7.G.B.4

If the radius of a circle is 6, find the circumference of the circle

Tags

CCSS.7.G.B.4

What is area?

• The distance around a shape

• The space inside a shape

• Half the distance around a shape

• Half the space inside a shape