Area and Circumference of the Circle

What is the distance around a circle?

• Circumference
• Area
• Diameter
• Radius

The definition of diameter is

• distance from the center of any point on the circle

• distance across the circle through the center

• distance from one point to another

• distance around the circle

what is the formula for finding diameter

• r = 2 d

• d = 2 r

• a = m c²

• c = π 2 r

If you fold a circle in half, what shape have you created?

• Quarter circle

• Semi-circle

• a taco

• another circle

Find the area of the circle.

• 64 cm²

• 201 cm²

• 50.3 cm²

• 25.1 cm²

Find the area of the circle.

• 37.7 cm²

• 18.8 cm²

• 72 cm²

• 113 cm²

Find the area of the circle.

• 77 cm²

• 154 cm²

• 44.0 cm²

• 210 cm²

Find the area of the circle.

• 243 cm²

• 254 cm²

• 56.5 cm²

• 25.1 cm²

Find the area of the circle.

• 31.4 cm2
• 314 cm2
• 78.5 cm2
• 87.3 cm2

Find the area of the circle.

• 380 m2
• 1520 m2
• 234.5 m2
• 69.1 m2