Practice problems of the area of a circle - page 2 of 17
Number of problems found: 335
- 22/7 circle
Calculate approximately the area of a circle with a radius 20 cm. When calculating π, use 22/7. - Area of a circle
The circumference of the circle is 150.72 centimeters. Calculate the area of the circle. - Circumference 69934
You know the ratio of the circumference of the circle to the area is 4:9. What is the circle's diameter? - Circumference 6929
Two-thirds of the circumference of the circle is 12π cm long. Calculate the area of the circle. - The ratio
The ratio of the lengths of the two circles is 5:2. Find the ratio of a a) the radii of these circles b) the areas for these circles - Radius
Determine the circle's radius if its perimeter and area are the same numbers. - Sprinkler 45721
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - The formula
The formula for the area of a circle is (Pi x r x r), where r = measure of the radius and Pi = 3.14. What is the area of a circle whose radius measures 1 cm? - Circumference 48533
The diameter of the circle is 6.8 cm. Calculate the area of the circle to 1 decimal place. Calculate the circumference of the circle to 1 decimal place. - Area to perimeter
Calculate the circle circumference if its area is 254.34cm2 - Sprinkler 36153
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place? - Diameter 4111
How many balls with a diameter of 3.25 cm with a mixture in a circle with a diameter of 27 cm? - Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Diameters of circles
How many percent of the area of a larger circle is a smaller circle if the smaller circle has a diameter of 120 mm and a larger one has a diameter of 300 mm? - Circumference 26251
Calculate the circumference of a pizza with a diameter of 62 cm. How big is the plate on which it is placed when it covers it? - Baking a cake
Christy is baking a cake that has a 9-inch diameter. She wants to cover the top of the cake with buttercream icing. How much icing will she need? - Silo
The outer perimeter of the silo is 32 m. The concrete wall is 35 cm thick. What is the diameter and area of the inside floor of the silo? - Calculate 45931
Calculate the area of a circle with a radius of 72.9 cm. Specify it in cm2, and enter only a numeric value in response. - Calculate 12061
The area of the two circles is in a 4:9 ratio. The larger circle has a diameter of 18 cm. Calculate the radius of the smaller circle. - Circumference 9541
What is the area of the round flowerbed, whose circumference is 62.8 m? How many edges does it have?
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