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Try it!

If the diameter of the circle was 8 cm, what is the circumference?

If the diameter of the circle was 8 cm, what is the circumference?

A

11.14 cm

B

4.86 cm

C

25.12

D

2.54777 cm

Quick review on exponents!

"r squared" or "r raised to the second power" is the same as...

"r squared" or "r raised to the second power" is the same as...

A

r x r

B

r x 2

C

r + r

D

r x r x r

Try it!

If the radius of the circle was 4 cm, what is the area?

If the radius of the circle was 4 cm, what is the area?

A

11.14 cm squared

B

12.56 cm squared

C

35.16 cm squared

D

50.24 cm squared

What's the circumference of the Earth? Choose the closest answer.

A

4,060.51 km

B

40,035 km

C

12,753.14 km

D

80,070 km

What's the pizza's area?

Remember, to get the radius, you must divide the diameter in half!

Remember, to get the radius, you must divide the diameter in half!

A

452.16 square inches

B

45.859 square inches

C

37.68 square inches

D

147.14 square inches