Easy
Medium
Hard
Challenging
Vocabulary/Formulas
100
Drew purchases a bowl. The diameter of the bowl is 14 cm. What is the circumference of the bowl?
What is 43.96
100
Whitney has a round table that has a radius of 4.35 meters. What is the area of the table ? (Round the answer 2 decimal places)
What is 59.42 m2 .
100
The diameter of a truck wheel is 56.5 in. What is the circumference of the wheel?
What is 177.41 in
100
Marc has a tire that has a radius of 16.1 cm. Find the radius, the diameter, the area, and the circumference.
What is Radius=16.1 cm
What is Diameter=32.2 cm
What is Area=813.92 cm2
What is Circumference=101.11 cm
100
The distance from the center of a circle to any point on its circumference.
What is a radius?
200
Aaliyah wants to buy cookies for her friend. The radius of a cookie is 5 inches. What is the cookie’s circumference?
What is 31.4
200
Tyler has a clock with a radius of 13.9 cm. What is the area of the clock using pi ? (Round the answer 2 decimal places)
What is 606.68 ft2
200
Marc has a car wheel with the radius of 12.7 meters. Find the circumference of the wheel.
What is 79.76 m
200
A circular park has a radius of 28.3 yd. Find the area of the circular park.
What is 2514.80 yd2
200
The distance around a circle
What is circumference?
300
Leroy makes a round pizza. She wants to put a cheese layer on the pizza. If the pizza is 8 cm in diameter, how many square cm of cheese layer does she need to put on the pizza?
What is 50.24
300
Ja'Tariah has a round frame that has a diameter of 15 inches. She needs to find the area of the frame. What is the area of the frame ?
What is 176.63 in2
300
The CD had a diameter of 11.2 cm . What is the circumference of the CD ?
What is 35.17 cm
300
What is the area of the circle with a diameter of 16.56 m?
What is 215.27 m2
300
The formula for the area of a circle
What is
400
Madyna wants to buy a round photo frame for her brother. The radius of the photo frame is 9 cm. What is the photo frame’s circumference?
What is 56.52
400
Elise has a carousel with a round bottom with a diameter of 33 inches. What is the area of the bottom of the carousel ?
What is 854.87 in2
400
My plate had a radius of 9.82 cm . What is the circumference of the plate ?
What is 61.67 cm
400
Daphney had a camera lens that had a diameter of 10.5 cm . What is the area of the camera lens ?
What is 86.55 cm2
400
The formula for the circumference of a circle
What is
500
Alisha has a circular carpet in his drawing room. He wants to put a circular table in middle of the carpet. The diameter of the carpet is 12 meters and the diameter of the table is 4 meters. Calculate how much area of carpet is left after putting the table in place?
What is 100.48
500
Jacob has a gumball tower and the bottom is round with a diameter of 9.5 cm . What is the area of the bottom of the gumball tower ?
What is 70.85 cm2
500
Trinity has a round flower headband with the diameter of 19.1 ft . What is the circumference of the headband ?
What is 59.97 ft
500
One medium circle and one small circle touch each other, and each of these circles touches the large circle. The radius of the small circle is 3 in centimeters and radius of the medium circle is 9 in centimeters.Calculate the area of the shaded region.
(Hint: Draw the radii of the circles to help find the radius of the large circle.) Use 3 for "pi"
What is 162 in2
500
The ratio that is equal to "pi" in any given circle
What is circumference/diameter?