Area of Circle Problems - page 2 of 19
Number of problems found: 380
- Diameter to area
Find the area of the circle whose diameter is 26 cm.
- Annulus
The radius of the larger circle is 8cm, and the radius of the smaller is 5cm. Calculate the area of the annulus.
- Circle area
Calculate the circle area with a radius of 1.2 m.
- Increase 4957
How does the area of a circle change if we double its radius? How many times does its area increase?
- Annular area
The square with side a = 1 is inscribed and circumscribed by circles. Find the annular area.
- Diameter
The diameter of a circular plot is 14 dm. Find the circumference and area.
- Annulus
Calculate the area of two circles annulus k1 (S, 3 cm) and k2 (S, 5 cm).
- Squaring the Circle
Find the side of the square with the same area as the circle of radius 9.
- Illuminates 4961
The lamp illuminates a circle with a diameter of 10m. What area does the light illuminate?
- Circumference circles
What is the circumference and area of the circle if r = 18cm
- Circles
The area of a circle inscribed in a square is 7. What is the area of a circle circumscribed around a square?
- Radius
Determine the circle's radius if its perimeter and area are the same numbers.
- Cable
The cable consists of 5 strands, each strand consisting of 11 wires with a diameter of d = 0.3 mm. Calculate the cross-section of the cable.
- 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?
- 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?
- 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
- Perimeter of the circle
Calculate the perimeter of the circle in dm, whose radius equals the side of the square containing 0.49 dm².
- Quatrefoil
Calculate the quatrefoil area, inscribed in a square with a side of 6 cm.
- Circle - easy 2
The circle has a radius of 6 cm. Calculate its diameter, perimeter, and area:
- Inscribed rectangle
The circle area is 216. Determine the area of the inscribed rectangle with one side 5 long.
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