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# Math Examples of Sphere

• ## Find the total surface area of sphere whose radius is 2.5 inch?

The formula for finding the total surface area of Sphere is given by:
Total surface area of sphere = 4 * âŠĽ* r2;
Where the r is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
TSA of sphere =?
On putting the given values in the formula we get the total surface area of sphere:
Total surface area of sphere = 4 * âŠĽ* r2;
TSA = 4 * 3.14 * (2.5)2;
TSA = 4 * 3.14 * 6.25;
TSA = 78.5 inch2;
So lateral surface area of sphere is equals to 78.5 inch2.

## Find the total surface area of a sphere whose radius is 12 inch?

The formula for finding the total surface area of a Sphere is given by:
Total surface area of sphere = 4 * âŠĽ* r2;
Where the r is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
TSA of sphere = ?
On putting the given values in the given formula we get the total surface area of a sphere:
Total surface area of sphere = 4 * âŠĽ* r2;
TSA = 4 * 3.14 * (12)2;
TSA = 4 * 3.14 * 144;
TSA = 1808.64 inch2;
So total surface area of sphere is equals to 1808.64 inch2.

## Find the volume of sphere whose radius is 7 inch?

The formula for finding the volume of a Sphere is given by:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Where the r is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
Volume of sphere =?
On putting the given values in the given formula we get the volume:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Volume = 4 / 3 * 3.14 * (7)3;
Volume = 4 / 3 * 3.14 * 343;
Volume = 4308.08 / 3;
Volume = 1436.02 inch3;
So the Volume of Sphere is 1436.02 inch3.

## Find the volume of sphere whose radius is 23 inch?

The formula for finding the volume of Sphere is given by:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Where the ‘r’ is the radius of sphere;
Here value of âŠĽis 3.14;
Volume of sphere =?
On putting the given values in given formula we get the volume:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Volume = 4 / 3 * 3.14 * (23)3;
Volume = 4 / 3 * 3.14 * 12167;
Volume = 152817.52 / 3;
Volume = 50939.17 inch3;
So the Volume of Sphere is 50939.17 inch3.

## Find the volume of sphere whose radius is 21 inch?

The formula for finding the volume of Sphere is given by:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Where the ‘r’ is the radius of sphere;
Here value of ‘âŠĽ’is 3.14;
Volume of sphere =?
On putting the given values in the given formula we get the volume:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Volume = 4 / 3 * 3.14 * (21)3;
Volume = 4 / 3 * 3.14 * 9261;
Volume = 116318.16 / 3;
Volume = 38772.72 inch3;
So the Volume of Sphere is 38772.72 inch3.

## Find the lateral surface area of sphere whose radius is 9.9 inch?

The formula for finding the lateral surface area of Sphere is given by:
Lateral surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
LSA of sphere =?
On putting given values in the given formula we get the lateral surface area of sphere:
Lateral surface area of sphere = 4 * âŠĽ* r2;
LSA = 4 * 3.14 * (9.9)2;
LSA = 4 * 3.14 * 98.01;
LSA = 1231.005 inch2;
So lateral surface area of sphere is equals to 1231.005 inch2.

## Find the radius of sphere where the lateral surface area is 55 inch2?

The formula for finding the lateral surface area of a Sphere is given by:
Lateral surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Given LSA of sphere = 55 inch2;
Here value of ‘âŠĽ’ is 3.14;
On putting the given values in the given formula we get the lateral surface area of sphere:
Lateral surface area of sphere = 4 * âŠĽ* r2;
55 = 4 * 3.14 * r2;
55 = 12.56 * r2;
r2 = 55 / 12.56 inch;
r2 = 4.37 inch;
R = √ 4.37;
R = 2.09 inch;
So radius of sphere is 2.09 inch.

## Find the lateral surface area of sphere whose radius is 7.5 inch?

The formula for finding the lateral surface area of Sphere is given by:
Lateral surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
LSA of sphere = ?
On putting the given values in the given formula we get the lateral surface area of sphere:
Lateral surface area of sphere = 4 * âŠĽ* r2;
LSA = 4 * 3.14 * (7.5)2;
LSA = 4 * 3.14 * 56.25;
LSA = 706.5 inch2;
So lateral surface area of sphere is equals to 706.5 inch2.

## Find the radius of sphere where the lateral surface area is 135 inch2?

The formula for finding the lateral surface area of Sphere is given by:
Lateral surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Given LSA of Sphere =135;
Here value of ‘âŠĽ’is 3.14;
On putting the given values in the given formula we get the lateral surface area of a sphere:
Lateral surface area of sphere = 4 * âŠĽ* r2;
135 = 4 * 3.14 * r2;
135 = 12.56 * r2;
R2 = 135 / 12.56 inch;
R2 = 10.74 inch;
R = √10.74;
R = 3.27 inch;
So the radius of sphere is 3.27 inch.

## Find the lateral surface area of sphere whose radius is 9.4 inch?

The formula for finding the lateral surface area of Sphere is given by:
Lateral surface area of sphere = 4 * âŠĽ* r2;
Where the r is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
LSA of sphere =?
On putting the given values in the given formula we get the lateral surface area of sphere:
Lateral surface area of sphere = 4 * âŠĽ* r2;
LSA = 4 * 3.14 * (9.4)2;
LSA = 4 * 3.14 * 88.96;
LSA = 1109.80 inch2;
So the lateral surface area of sphere is 1109.80 inch2.

## Find the total surface area of sphere whose radius is 7.2 inch?

The formula for finding the total surface area of a Sphere is given by:
Total surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Here value of ‘âŠĽ’ is 3.14;
TSA of sphere = ?,
On putting given values in the given formula we get the total surface area of sphere:
Total surface area of sphere = 4 * âŠĽ* r2;
TSA = 4 * 3.14 * (7.2)2;
TSA = 4 * 3.14 * 51.84;
On further solving we get:
TSA = 651.11 inch2;
So total surface area of sphere is equals to 651.11 inch2.

## Find the radius of sphere where total surface area is 75 inch2?

The formula for finding the total surface area of Sphere is given by:
Total surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Given TSA of Sphere = 75 inch2;
Here value of ‘âŠĽ’ is 3.14;
On putting the given values in the given formula we get the total surface area of sphere:
Total surface area of sphere = 4 * âŠĽ* r2;
75 = 4 * 3.14 * r2;
75 = 12.56 * r2;
R2 = 75 / 12.56 inch;
R2 = 5.97 inch;
R = √ 5.97;
On further solving we get:
R = 2.44 inch;
So the radius of a sphere is 2.44 inch.

## Find the radius of sphere where total surface area is 140 inch2?

The formula for finding the total surface area of a Sphere is given by:
Total surface area of sphere = 4 * âŠĽ* r2;
Where ‘r’ is the radius of sphere;
Given TSA of Sphere =140;
Here value of ‘âŠĽ’ is 3.14;
On putting the given values in the given formula we get the total surface area of sphere:
Total surface area of sphere = 4 * âŠĽ* r2;
140 = 4 * 3.14 * r2;
140 = 12.56 * r2;
R2 = 140 / 12.56 inch;
R2 = 11.14 inch;
R = √ 11.14;
R = 3.33 inch;
So radius of sphere is 3.33 inch.

## Find the radius of sphere where volume of sphere is 190 inch3?

The formula for finding the volume of Sphere is given by:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Where r is the radius of sphere;
Given Volume of Sphere = 190;
Here value of ‘âŠĽ’ is 3.14;
On putting the given values in the given formula we get the volume:
Volume of sphere = 4 / 3 * âŠĽ* r3;
190 = 4 / 3 * 3.14 * r3;
190 = 12.56 / 3 * r3;
190 = 4.18 * r3;
R3 = 190 / 4.18;
R3 = 45.45;
R = 3√ 45.45;
R = 3.56 inch;
So the radius of sphere is 3.56 inch.

## Find the radius of a sphere where the volume of sphere is 140 inch3?

The formula for finding the volume of a Sphere is given by:
Volume of sphere = 4 / 3 * âŠĽ* r3;
Where the r is the radius of sphere;
Given Volume of Sphere = 140;
Here value of ‘âŠĽ’ is 3.14;
On putting the values in given formula we get the volume:
Volume of sphere = 4 / 3 * âŠĽ* r3;
140 = 4 / 3 * 3.14 * r3;
140 = 12.56 / 3 * r3;
140 = 4.18 * r3;
R3 = 140 / 4.18;
R3 = 33.49;
R = 3√ 33.49;
R = 3.22 inch;
So the radius of sphere is 3.22 inch.
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