Area
If a circle's radius is 10.2 mm, what is its area?
*Round your answer to the nearest tenth
*Use the correct units of measurement in your answer.
326.7 mm2
If the diameter of a circle is 6.8 yds, what is its circumference?
*Round to the nearest tenth.
*Use the correct units of measurement.
21.4 yds
If the diameter of a circle is 6.89 m, what is its area?
*Round to the nearest tenth.
*Use the correct units of measurement.
37.3 m2
Jake has a bunch of pumpkins. If he puts all the pumpkins in a circle, the circumference of that circle is 48.6 cm. What is the diameter of the circle?
*Round to the nearest tenth.
*Use the correct units of measurement.
15.5 cm
Why is March 14 celebrated as Pi Day?
The diameter of a circle is 8.5 cm. What is its area?
*Round your answer to the nearest tenth.
*Use the correct units of measurement in your answer.
56.7 cm2
If the radius of a circle is 7 inches, what is its circumference?
*Do not round.
*Use the correct units of measurement.
43.96 inches
If the circumference of a circle is 78.46 cm, what is its radius?
C=2pir
*Round to the nearest tenth.
*Use the correct measurement.
12.5 cm
Mr. G has a mini disc with a diameter of 2 inches. What is the area of the disc?
*Do not round.
*Use the correct units of measurement.
3.14 inches squared
Pi is the 16th letter of the Greek alphabet. What is the 16th letter of our alphabet?
The area of a circle is 12.56 square feet. What is its radius?
*Use the correct units of measurement.
2 feet
If the radius of a circle is 64 mm, what is its circumference?
*Round to the nearest tenth.
*Use the correct units of measurement.
401.9 mm
If the circumference of a circle is 36 yd, what is its radius.
C=2pir
*Round to the nearest tenth.
*Use the correct units of measurement.
5.7 yd
Maria and Jamie each made a circle shaped cake. Maria made one with a radius of 6.4 inches. Jamie made a cake with a diameter of 9 inches. What was the area of the larger cake?
*Round to the nearest tenth.
*Use the correct units of measurement.128.6 inches squared (Maria)
What do you get if you divide the circumference of a jack-o-lantern by its diameter?
If the area of a circle is
121pi m^2
what is its radius?
*Use the correct units of measurement.11 meters
If I have a circle with a radius of 9 cm, what is its circumference?
*Round to the nearest tenth.
*Use the correct units of measurement.
56.5 cm
If the area of a circle is 314 cm2, what is its circumference?
*Do not round.
*Use the correct units of measurement.
62.8 cm
Leo has a plate with a diameter of 3.4 inches. What is its area?
*Round to the nearest tenth.
*Use the correct units of measurement.
9.1 in2
Why does the official celebration of Pi Day start on March 14 at 1:59 p.m.?
Because Pi is 3.14159
Clara had a donut with a radius of 6.5 cm. The hole in the middle has a radius of 1.4 cm. What is the area of the donut without the hole?
*Round to the nearest tenth.
*Use the correct units of measurement.
126.5 cm2
Naomi has a mini frisbee with a radius of 21.3 cm. What is its circumference?
*Round to the nearest tenth.
*Use the correct units of measurement.
133.8 cm
What is the diameter of a circle with an area of 78.5 square inches
*Use the correct units of measurement.
10 inches
Janice has five plates. If each has a diameter of 6.7 cm, what is the total area of the five plates?
*Round your answer to the nearest tenth.
*Use the correct units of measurement.
176.2 square cm
March 14 of what year was celebrated as Super Pi Day?
2015 because Pi is 3.1415