Diameter
Radius
Circumference
Area
Trivia
100

The radius of the circle is 4. What is the diameter?

8

100

How do you find radius when given diameter?

Diameter divided by 2.

100

What is the formula to find circumference when given the radius?

2 x 3.14 x r

100

What is the formula for area?

3.14 x r2

100

The first iPhone was released in what year?

2007

200

How do you find diameter when given a radius?

Radius times 2.

200

The diameter of the circle is 4. What is the radius?

2

200

What is the formula to find circumference when given the diameter?

3.14 x d

200

What is the area, if the radius is 9?

254.3

200

What is the fifth sign of the zodiac?

Leo

300

The radius of the circle is 6. What is the diameter?

12

300

The diameter of the circle is 9. What is the radius?

4.5

300

What is the circumference, if the radius is 6?

37.7

300

What is the area, if the diameter is 9?

63.6

300

What is the only planet in our solar system to rotate clockwise on its axis?

Venus

400

The radius of the circle is 10. What is the diameter?

20

400

The diameter of the circle is 3. What is the radius?

1.5

400

What is the circumference, if the diameter is 9?

28.3

400

What is the circumference, if the diameter is 4?

50.2

400

What popular young adult book series sends “tributes” to participate in a televised competition in which they fight to the death?

The Hunger Games

500

The radius of the circle is 13. What is the diameter?

26

500

The diameter of the circle is 6. What is the radius?

3

500

What is the circumference, if the radius is 7?

44

500

What is the area, if the radius is 10?

314

500

What is the distance from earth to the sun?

93 million miles

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