Area and Circumference of Circles

Front

Find the area of the circle

Back

153.86

Front

If my radius is 10ft, what is my diameter?

Back

20ft

Front

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

Back

9.5 inches

Front

Formula for finding the circumference of a circle with radius?

Back

2*π*r

Front

What is the formula for finding the circumstance of a circle with just the diameter? Options: π*d, b*h, l*w*h, I do not know

Back

π*d

Front

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

Back

Radius

Front

What is the formula for area of a circle given the radius?

Back

A = πr²

Front

What is the area of a circle with a radius of 21 cm?

Back

1384.74 cm²

Front

What is the circumference of this circle? Options: 3.14 cm, 37.68 cm, 24 cm, 68.4 cm

Back

37.68 cm

Front

Diameter of a circle: 3 cm. What is the circumference?

Back

9.42 cm