How do you get the area of a circle with the radius?

How do you get the area of a circle with the radius?

The area of a circle is pi times the radius squared (A = π r²).

What is the area of a circle of radius 14?

2 Answers. The area is 196π , or 615.752160 when evaluated to 6 decimal places.

What is the area of the radius is 6?

A = πr2 , where r is the radius of the circle …. Thus, after rounding off the answer to one decimal point, the area of the circle is 113.1 ft2 (answer choice D).

How do you you work out the area of a circle?

Area of Circle Formulas Suppose a circle has a radius ‘r’ then the area of circle = πr2 or πd2/4 in square units, where π = 22/7 or 3.14, and d is the diameter. Area of a circle can be calculated by using the formulas: Area = π × r2, where ‘r’ is the radius.

What is the area of a 10 circle?

=78.5 square inches.

What is the area of a 15cm circle?

⇒ A ↠ 176.625 cm² .

What is the area of a circle with radius 6 mm?

A circle of radius = 6 or diameter = 12 or circumference = 37.7 mm has an area of: 1.131 × 10 -10 square kilometers (km²) 0.0001131 square meters (m²) 1.131 square centimeters (cm²)

How to calculate the radius of a circle?

The radius of a circle calculator uses the following area of a circle formula: Area of a circle = π * r 2 Area of a circle diameter. The diameter of a circle calculator uses the following equation:

How does area of a circle calculator work?

The area of a circle calculator helps you compute the surface of a circle given a diameter or radius. Our tool works both ways – no matter if you’re looking for an area to radius calculator or a radius to the area one, you’ve found the right place ◔

What is the diameter of a circle called?

The straight from any point to another through the the center point is called the diameter. K-12 students may refer the below formulas of circle to know what are all the input parameters are being used to find the area, perimeter or radius of a circle.