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The formulas linking the diameter and area of a circle reads area = π × (diam/2)2 and diam = 2 × √ (area / π). For instance, the diameter of a circle with unit area is approximately equal to 1.128 because diam = 2 × √(1 / π) ≈ 1.128.
- Circumference to Diameter Calculator
The circumference to diameter calculator can help you solve...
- Circumference to Diameter Calculator
Learn how to calculate the area of a circle using the formula A = πr2, where r is the radius and π is pi. See the derivation of the formula using rectangles and triangles, and find examples and FAQs on area of circle.
- The area of circle is the region occupied by circle in the two-dimensional space.
- The area of circle can be calculated by using the formulas: Area = π x r 2 , in terms of radius ‘r’. Area = (π/4) x d 2 , in terms of diameter, ‘...
- The perimeter of circle is nothing but the circumference, which is equal to twice of product of pi (π) and radius of circle, i.e., 2πr.
- Given, r = 3 cm. We know that the area of circle is πr 2 square units Hence, A = π x 3 2 = 9π cm 2 .
- We know that the circumference of a circle is 2πr units. Hence, C = 2π(14) = 28π cm.
- We know that, Area of a circle = πr 2 square units Hence, 340 =3.14 r 2 Hence, r 2 = 340/3.14 r 2 = 108.28 Hence, r = 10.4 cm. Hence, radius o...
- We know that, Area = πr 2 A = π(6) 2 A = 36π Hence, the area of a circle is 36π, if the radius is 6 cm.
- The area of a circle is 1303.8 square inches if its circumference is 128 inches.
Learn how to calculate the area of a circle using the formula A = πr 2 or A = (π/4)d 2, where r is the radius and d is the diameter. See the derivation, real-world examples, and differences between area and circumference of a circle.
Learn how to calculate the area of a circle using the formula A = π r2 or A = (π/4) × D2. Use the online calculator to find the area, radius, diameter or circumference of a circle.
Calculate the area of a circle using its radius or diameter in various units. Learn the formula, see examples and practical applications of circle geometry.
Aug 3, 2023 · The area of a circle can be calculated using three different formulas. The formulas are used based on whether the radius, diameter, or circumference is known to us. Each of the three situations is discussed below with their formulas and solved examples.
Learn how to find the area of a circle using its radius, diameter or circumference with formulas and examples. See how to use a calculator, convert units and check your answers.
