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2 days ago · 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
Diameter and circumference are lengths related to each other...
- 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.
- What is the area of a circle with a radius [latex]4[/latex] inches? As you might have guessed, this is a very straightforward problem. The measure of the radius is given to us which is [latex]\color{red}4[/latex] inches.
- Find the area of a circle with a diameter of [latex]10[/latex] centimeters. Here’s the deal. You are assumed to give your answer in terms of [latex]\pi[/latex] unless you are explicitly told to write the area as an approximation.
- Find the exact area of a circle whose diameter has endpoints [latex]\left( { – 7,2} \right)[/latex] and [latex]\left( {5,2} \right)[/latex].
- Find the approximate area of a circle whose radius has a length of [latex]2.5[/latex] centimeters. Note: Use [latex]\large{\pi} = 3.1416[/latex].
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.
The area of a circle can be found using the following formula: A = πr 2 where A is area, r is radius, and π is the mathematical constant approximately equal to 3.14159.
