All About CIRCLES! Jeopardy Template

Vocab

Area

Circumference

Area of a Ring

100

The definition of diameter

What is the distance across a circle?

100

The definition of radius

What is the distance halfway across the circle OR the distance from the middle of the circle to any outer edge?

100

The formula for finding the area of a circle

What is A=πr²?

100

The formula for circumference

What is C= dπ or C=2rπ ?

100

The way to solve for the area of a ring

Find the area of the outer circle and subtract the area of the inner circle

200

Find the area of a circle that has a radius of 5m. Leave in terms of pi.

25π m²

200

Find the circumference of a circle with a radius of 8 mm. Leave in terms of pi.

16π mm

300

Find the area of a circle with a diameter of 8.4in. Use 3 for pi.

52.92 in²

300

Find the circumference of a circle with a radius of 11.2 cm. Use 3 for pi.

67.2 cm

400

If the area of a circle is 64π mi², what is the diameter of this circle?

16 mi.

400

The circumference of a circle is 12.6 yd. Find the radius of this circle. Use 3 for pi.

2.1 yd.

500

Find the area of a circle with a radius of 9.5ft. Use 3.14 for pi.

283.385 ft²

500

A circle has an area of 50.24 m². Find the circumference of this circle. Use 3.14 for pi.

25.12 m²