# What is the area of a sphere?

### VERIFIED

### Pellumb Ahmetaj

QTS Secondary school Maths teacher with 4 years experience πͺπ―

The area of a sphere is actually a surface area as a sphere is a 3 dimensional object. The area of a sphere is equal to 4 x pi x the radius squared. It's derivation is very interesting and is done by using multi sided polygons inside the sphere, further individual research is recommended.

### VERIFIED

### Josh Prince

I want to help you achieve amazing GCSE results!

Four thirds x pi x radius cubed is the volume of a sphere and 4 x pi x radius squared is the formula for the area of a sphere

### Answers from these tutors

### Asked in Maths π―

ASKED BY ALICE

MATHS π―#### I need help with trigonometry. Are there resources that you would recommend?

A private tutor is always a good start... hint hint :) But I also recommend Khan Academy, a free maths website which covers all levels and areas of ...

ASKED BY LWENDO

MATHS π―#### How do you simplify the algebraic expression : 2x/3 + xy + x - xy/3?

the easiest way to simplify an algebraic term like this is to take out the common fractions and common terms. in this case it is 1/3 and x. 2x/3 + x...

ASKED BY BLESSING

MATHS π―#### A shop sells apple in bags of 5 how many full bags can be made from 21 ??

If a full bag contains 5 apples, then you should do 21/5 to work out how many bags are required for all the apples. 21/5 = 4.2 Since the question as...

ASKED BY LAUREN

MATHS π―#### Gary brought a house for Β£235000. In the first year the value of the house depreciated by 5%. In each of the years 2,3, and 4 the value of the house increased by 7%. Work out the value of the house at the end of the fourth year?

This question is testing your understanding of multipliers. In the first year Since the house value depreciated by 5% the multiplier we use is: 100%...

ASKED BY ALICE

MATHS π―#### Hi, does anyone know the formula for Sin (trigonometry)?

Sin (a) = opposite/hypotenuse SOH CAH TOA can help you to remember this, give it a google! However if you mean the sine rule, itβs: a/sin(A) = b/sin...

ASKED BY SHAAN

MATHS π―#### What is 0 to the power of 0? I believe there is 2 possible answers?

0^0 is mathematically ambiguous and has been debated for a long time. Some say itβs 1 because an exponent to the power of 0 is 1. Others say itβs 0 ...

ASKED BY SOPHIA

MATHS π―#### How do you differentiate a multi termed polynomial from first principles, for example 5x^3+5x?

Times by the power and take one off the power - this sentence gets me through differentiation :) So dy/dx of y = 5x^3 + 5x would be: (3x5)x^(3-1) + ...

ASKED BY FFLUR

MATHS π―#### How do you simplify 3x/y - 4-x/3 (algebraic fractions)?

First take the common denominator Which is 3y. {3x(3) - 4(3y) -x(y)}/3y Again you can simply this by removing the brackets and you get (9x - 12y - x...

ASKED BY ISABELLA

MATHS π―#### How do u show -2<x<1 on a graph when doing a question on regions of inequalities?

Draw a straight line at -2 up the y axis and a straight line at 1 up the y axis. Shade the area between the two lines and this region on the graph i...

ASKED BY LEXI

MATHS π―#### How would you work out 4x^3 / 12x^7 using only positive indices?

You would first use the law of indices. So you would get the exponent of the x to be 3-7=-4. Also you have the 4/12 which can be simplified into 1/3...

Find me a tutor

We take your privacy seriously. View our policy.