The area of a shape of circle problems - page 3 of 18
Number of problems found: 357
- Radius
Determine the circle's radius if its perimeter and area are the same numbers.
- Circumference 61704
Calculate the area of a circle if its circumference is 21.98 dm. Express the result in square decimetres.
- Sprinkler 45721
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place?
- Flowerbed 25241
How large should we sow an area with grass in a circular flowerbed with a radius of 4m?
- 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?
- The star
Find the area of the shaded part of the square with a side of 22 cm.
- Described 83448
A square is described as a circle with a radius of 6 cm. How much larger is the area of the square than the area of the circle?
- 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.
- Inscribed 7018
The dragon has the shape of a regular hexagon inscribed in a circle with a radius of 20 cm. What is the area of the dragon?
- Diameter 2949
What is the diameter of a circle with an area of 35 cm square?
- Perimeter of the circle
Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm².
- Area to perimeter
Calculate the circle circumference if its area is 254.34cm2
- Inscribed rectangle
The circle area is 216. Determine the area of the inscribed rectangle with one side 5 long.
- CD disc
A compact disc has a diameter of 11.8 cm. What is its surface area in square centimeters?
- Triangle
Calculate the area of the triangle ABC if b = c = 17 cm, R = 19 cm (R is the circumradius).
- Circumference 46181
Calculate the area of a circle that has a circumference of 314 cm.
- Sprinkler 36153
The rotary sprinkler has a spray of 18m. How much land can it irrigate from one place?
- Flowerbed 2801
A footpath 50 cm wide circles the circular flowerbed, with a diameter of 3.6 m. Calculate the footpath area.
- Diameter 4111
How many balls with a diameter of 3.25 cm with a mixture in a circle with a diameter of 27 cm?
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