# How do you find a circumumference of a circle?? Iโm confused ๐ญ๐ญ๐ญ?

### VERIFIED

### Samantha Rajaratnam

Bsc Maths and Education | 4 years experience | willing to help anyone :)

donโt worry youโll get the hang of it eventually! there are 3 key elements of a circle you have to remember: circumference=the perimeter diameter= the length across the middle radius= the length from the middle to the edge when working with circles, there is a special number called pi (ฯ). If youโre using a calculator there is a button that represents pi (shift + x10). if youโre not using a calculator then you can represent pi as 3.14 now to find the circumference, thereโs a formula you need to use. you can use: pi x diameter or 2 x pi x radius hope this helps!

### Samantha also answered

### Asked in Maths ๐ฏ

ASKED BY BENJAMIN

MATHS ๐ฏ#### Can someone please explain to me how to do these questions ? The coordinates of the maximum point of the graph y = f(x) are (4,3). Give the coordinates of the maximum point of the graph with equation: a) y = f(x), b) y = f(x) - 4, c) y = f(x-2) + 1?

This is a functions transformation question. What you need to know to solve this is how the addition or subtraction of a number, either within or ou...

ASKED BY LUCY

MATHS ๐ฏ#### For what values of b is (x-b) a factor of 3x^3 +(b+3)x^2 -(4b^2 +b-7)x-4?

Let f(x) = 3x^3 + (b+3)x^2 - (4b^2+b-7)x-4 Then (x-b) is a factor of f(x) if and only if f(b)=0, because if (x-b) is a factor of f(x) then we can wr...

ASKED BY HUSEYIN

MATHS ๐ฏ#### Write the equation of the line in the form Y=MX+C. (-2,3) and (-1,4)?

How do we solve this? We can just plug the co-ordinates into the equation: yยฒ-yยน = m(xยฒ-xยน) + c So substituting gives us: (4 - 3) = m (-1 - -2) + c ...

ASKED BY EMRE

MATHS ๐ฏ#### Whats the equation which passes through (-3,-1 and (3,-4)?

To work out the equation of the line that passes through this point you know it will be in the form y=mx +c, where m is gradient of the line and c t...

ASKED BY SELINA

MATHS ๐ฏ#### What is the difference between a variable and a constant?

A constant is held constant (as the name suggests), where as a variable is a number that is aloud to change. For instance, if we let y=5+x, here, 5 ...

ASKED BY AMBAR

MATHS ๐ฏ#### How do I found out the Highest Common Multiple (HCM) of 326 and 356?

To work this out you find all the factors of 326 and all the factors of 356. Then you simple find the biggest one that they both have 326 : 1, 2, 16...

ASKED BY LAUREN

MATHS ๐ฏ#### Find the integer value of x that satisfies both inequalities x + 5 > 8 and 2x - 3?

I think you maybe missing something from your question? 2x - 3....? Since we are only looking for one integer as the answer perhaps it was 2x - 3 < ...

ASKED BY SHLOIMY

MATHS ๐ฏ#### Can someone please explain to me how to do mathematical proof by deduction?

Proof by deduction implies proving a particular property using a well known theorem or formula. For example: to show that x^2-2*x+1 >= 0 for any rea...

ASKED BY ANURAG

MATHS ๐ฏ#### Should we study calculus or stats to prep for college?

In the uk we study calc and normally stats at a levels (US equivalent of seniors in high school I think) if we chose to study maths which is then bu...

ASKED BY DURDANA

MATHS ๐ฏ#### How would I explain the times tables to my son who is 7 years old?

Hi Duranda, Perhaps a good strategy would involve beginning by explaining what it really means to multiply a number by another number, in simple ter...

Find me a tutor

We take your privacy seriously. View our policy.