Practice problems of the area of a circle - page 4 of 17
Number of problems found: 333
- Circumference 6338
The circle has the same area as the square, whose circumference is 400m. Calculate the diameter of the circle. - Logs
The log has a diameter of 30 cm. What largest beam with a rectangular cross-section can carve from it? - Everywhere 36403
We cut out the largest possible round tablecloth from a square fabric of 150x150 cm. After setting, it hung around 20 cm everywhere. What is the area of the round tabletop? - Circumference 6651
Calculate the circumference of a circle if its area is 706.5 cm² - Diameter 6289
A circle with the largest possible diameter is cut from a square with a side length of 35 cm. What percent of the square area is waste? - Pizza diameter
If an 18-inch pizza costs $16.99 and is cut into 12 slices, what is the cost per square inch? - Cutting square
We cut the circle with the highest possible diameter from a square with a side of 30 cm. How many percents of the square area is this circle? - Percentage of waste
In a square plate with a side 75 cm, we cut four same circles. Calculate the percentage of waste. - Calculate 6930
Calculate the diameter of a circle whose area S = 78.5 cm². - Radius
Find the radius of the circle with area S = 200 cm². - Circle
How big is an area of a circle if its circumference is 51.2 cm? - Described
Calculate the perimeter of the circle described by a triangle with sides 478, 255, 352. - Right triangle
A circle with a radius of 5 cm is described in a right triangle with a 6 cm leg. What is the height at the hypotenuse of this triangle? - Right-angled triangle
Determine the area of a right triangle whose side lengths form successive members of an arithmetic progression, and the radius of the circle described by the triangle is 5 cm. - Circumference 46181
Calculate the area of a circle that has a circumference of 314 cm. - Inscribed 44101
A circle is inscribed in the triangle with sides of 13 cm, 14 cm, and 15 cm. What is its radius? - Perimeter of the circle
Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm². - CD disc
A compact disc has a diameter of 11.8 cm. What is its surface area in square centimeters? - 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? - Diameter 2949
What is the diameter of a circle with an area of 35 cm square?
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