Circumference and Area of Circles

Front

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

Back

Radius

Front

If my diameter is 19 inches, what is my radius?

Back

9.5 inches

Front

Circumference

Back

The distance around a circle.

Front

Formula for finding the circumference of a circle with just the diameter?

Back

π*d

Front

What is the circumference of this circle? Options: 3.14 cm, 37.7 cm, 24 cm, 68.4 cm

Back

37.7 cm

Front

Circumference of a circle with radius 12.5 mm

Back

78.5mm

Front

The circumference is 62.8 inches. What is the radius? (round to the nearest tenth)

Back

10 inches

Front

What is the area of this circle?

Back

113.1

Front

What is the area of this circle?

Back

1385.44

Front

Area of a circle is 25 π in². Find the diameter.

Back

10 in