Practice problems of the area of a circle
Number of problems found: 333
- Circle area
Calculate the circle area with a radius of 1.2 m. - Calculate
Calculate the area of a circle whose radius is 5 dm. - Circle simple
The circumference of a circle is 6.28. What is the area of the circle? - Perimeter to area
Calculate the area of a circle with a perimeter of 15 meters. - Diameter to area
Find the area of a circle whose diameter is 26cm. - Circle - easy 2
The circle has a radius of 6 cm. Calculate its diameter, perimeter, and area: - Circumference 29361
What is the circumference and area of the circle if r = 18cm - Increase 4957
How does the area of a circle change if we double its radius? How many times does its area increase? - Cable
The cable consists of 8 strands. Each strand consists of 12 wires with a diameter of d = 0.5 mm. Calculate the cross-section of the cable. - Illuminates 4961
The lamp illuminates a circle with a diameter of 10m. What area does the light illuminate? - Irrigates 4958
The water jet for welding the lawn reaches a distance of 1.8 m. How much is the lawn irrigated? - 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.
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