What is the formula to find the radius? If the diameter of a circle is known then the formula for radius is diameter divided by 2. If the circumference of a circle is known then the formula for radius is the circumference divided by 2 pi. And if the area of a circle is known then...
To find the area of a circle inside a right angled triangle, we have the formula to find the radius of the right angled triangle,r = ( P + B – H ) / 2. Given the P, B and H are the perpendicular, base and hypotenuse respectively of a right angled triangle. where π = 22 /...
The radius of a sphere or a circle is the distance from its center to its circumference. For any regular polygon, the radius is the same from the center to all its vertices. A circle is a regular polygon where the distance from the center to any of its edges is the same. The radius...
Answer to: Find the radius of convergence, R, of the series. \sum_{n= 3}^{\infty}\frac{x^{n + 5}}{4n!} Find the interval, I, of convergence of the...
To find the radius of convergence and interval of convergence of the series we use the ratio test as follows If there exists an {eq}N {/eq} so that for all {eq}n\ge N,\:\quad a_n\ne 0 {/eq} and {eq}\lim _{n\to \infty }|\frac{...
Example 1: If the radius of a circle is 30 cm, find its circumference. Solution: r = 30 cm Use the formula to find the circumference of a circle: C = 2\(\pi r\) [Write the formula] = 2 x 3.14 x 30 [Substitute the value of r and \(\pi\)] = 6.28 x 30 = 188.4 Therefor...
The formula for calculating the area of a circle is:Area = π * r² Where "Area" is the circle's area. (pi) is a Mathematical constant with an approximate value of 3.14159. r is the radius of the circle, which is the distance squared (raised to the power of 2) from the circle...
Answer to: Find the radius of convergence and interval of convergence of the following series: \sum_{n=1}^{\infty}...
The surface area of a sphere is equal to ( 4) times Pi(π ) times the radius squared. ( 4π ⋅ ((radius))^2) Substitute the value of the radius( r=18) into the formula to find the surface area of the sphere. Pi(π ) is approximately equal to ( 3.14). ( 4⋅ π ⋅ ...
The area of a circle is equal to Pi(π ) times the radius( r) squared. (π ⋅ ((radius))^2) Substitute in the value of the radius( r=3/4) into the formula for the area of a circle. Pi(π ) is approximately equal to ( 3.14). (π ⋅ ((3/4))^2) Simplify the expr...