Area of Circle Problems - page 6 of 20
Number of problems found: 392
- Square colored percentage
The square in the picture has a side length of 6 cm. What percentage of the area is the colored part? - Circle waste percentage
A full circle is cut from a square plate with a side of 200 mm. What percentage of the plate is waste? - Circle circumference calculation
Calculates the circumference of a circle if its area is S = 2119.5 cm². - Waste
How much of the waste is from a circular plate with a radius of 1 m, from which we cut a square with the highest area? - An equilateral
An equilateral triangle with a side of 10 m represents a wooden platform standing on a lawn. A goat is tied to a corner with a 15 m rope. What is the maximum amount of grazing area available to the goat? - Circle circumference
Calculate the circumference of a circle if its area is 706.5 cm² - Stadium area
When the runner goes around the circular stadium five times, he runs 157 km. What area does the stadium occupy? - 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? - Rectangles in circle
I need to fill a circle with a diameter of 4900 cm with how many rectangles, 125x60 or 100x50 cm. - Path paving cost
A 2.4 m wide path will be paved around a circular lake with a diameter of 8.2 m. How much will the paving cost when 1 m square costs 350 kc? - Circular ring
A square with an area of 16 centimeters is inscribed circle k1 and described to circle k2. Calculate the area of the circular ring, which circles k1, and k2 form. - Cycling track
The cycling racetrack has the shape of a circle with an area of 2 ha. How long will a cyclist drive one-third of a kilometer in a perimeter? - Percentage of waste
In a square plate with a side 58 cm, we cut four same circles. Calculate the percentage of waste. - Pipeline
By what percentage does the cross-sectional area of a pipe decrease if the circular cross-section is replaced by a square with the same perimeter? - Square circle difference
A circle is inscribed in a square with a side of 12 cm so that it touches all its sides. Calculate the difference between the area of the square and the circle. - The crane
The construction crane has a 20 m long arm. What construction area in ares can it handle from this crane if it rotates around its axis? - Octagon area
An irregular convex octagon is inscribed in the circle. Its four adjacent sides have a length of 3, and the remaining four adjacent sides have a size of 2. What is the area of a given octagon? - Square circle area
A circle describes a square with a side of 8 cm. Calculate the area of the rest of the circle if we cut out the square. - Park trail length
The circular park has an area of 31400 m². A trail runs across the center of the park. How long is it? - Circle Area from Diagonal
Calculate in cm² the area of a circle whose diameter is equal to the length of the diagonal of a square ABCD with a side of 4 cm.
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