Area and Circumference Unit Assessment

A circle has a radius of 13in., which is the closest to it's AREA in square inches?

• 41

• 531

• 82

• 133

What is the AREA of the yellow?

• 78.5 mi²

• 19.625 mi²

• 39.25 mi²

• 31.4 mi²

What is the formula for CIRCUMFERENCE of a circle?

• C=πd

• C=πd²

• A=πr²

• C=πβγΔ

What is the AREA of this semicircle ?

• 25.13cm

• 50.27cm

• 200.96cm

• none of the above

A circle has a diameter of 76 in. Which of these is the closest to its CIRCUMFERENCE?

• 18,137

• 4534

• 119

• 239

What is the RADIUS of this circle?

• 18

• 36

• 9

• 8

What is the formula for AREA of a circle?

• C=πd

• C=πd²

• A=πr²

• A= C/d

Which segment is NOT a radius?

• CA

• CB

• CD

• LM

What is CIRCUMFERENCE?

• π

• The distance around the outside of a circle

• The amount of space on the inside of a circle

Alex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a DIAMETER of 3.5 feet. What is the ring's CIRCUMFERENCE (use 3.14 for pi)?

• 11.32 ft

• 12.25 ft

• 10.99 ft

• 8.75 ft