Asked by HailieMaths 💯

How do you find a circumumference of a circle?? I’m confused 😭😭😭?

VERIFIED

Samantha Rajaratnam

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

don’t worry you’ll 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 (π). If you’re using a calculator there is a button that represents pi (shift + x10). if you’re not using a calculator then you can represent pi as 3.14 now to find the circumference, there’s 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 💯

ASKED BY SOMERSBY

MATHS 💯

How do you calculate the energy rating of an appliance?

You can use this formula to estimate an appliance's energy use: (Wattage × Hours Used Per Day) ÷ 1000 = Daily Kilowatt-hour (kWh) consumption 1 kilo...

ASKED BY DIANA

MATHS 💯

The tax rate on Jerome Jame's $112,000 vacation home is 25 mills. The property is assessed at full value. How much will Jerome pay in taxes this year? A. $780 B. $7,800 C. $2,800 D. $28,00?

Hello Diana. The Mills rate represents a figure amount per $1000 of the assessed value of the property (mills is derived from the Latin word "milles...

ASKED BY SOPHIÉ

MATHS 💯

How do I find the point of contact of a tangent to a curve or circle?

the point of contact = points of intersections to find this you can equate the both equations of the circle and the tangent then rearrange to find t...

ASKED BY LILY

MATHS 💯

How do you make x the subject of an equation with fractions on each side? For example: v/7x=w/?

Your question is not clear and incomplete but if you mean (v/7x) = (w/y) Easiest way is to flip both sides upside down so (7x/v) = (y/w) Multiply bo...

ASKED BY ANNA

MATHS 💯

How to do Pythagoras theorem?

Pythagoras theorem States that in a right angled triangle if you square the Hypotenuse c which is longest side facing the right angle (90 degrees) i...

ASKED BY JOSH

MATHS 💯

How do I find the area of a triangle when I only know the three side lengths?

use the cosine rule b^2 + C^2 -A^2/ 2bc to find the cosA angle. then do cos-1 to find the angle. then use sine rule= 1/2AB sinC to find the area Hop...

ASKED BY FAITH

MATHS 💯

Increase £14120 by 4%. Give your answer rounded to 2 decimal points?

4% of 14120 = 1.04x14120 = 14684.8

ASKED BY SARAH

MATHS 💯

How do I plot a scatter graph with two sets of dat ?

Generate a graph with x and y. Plot the one set of data then plot the other one in a different colour. I am assuming that you are comparing the two ...

ASKED BY SOPHIE

MATHS 💯

How do you work out what the equation of the parallel line to my=2x+3 and passes through (0,7) is?

If a line is parallel, then the equation of the parallel line will have the same gradient as the original line. In this case, the gradient of then p...

ASKED BY ANNIE

MATHS 💯

How do you work out perimeter?

The perimeter of a shape is essentially just the combined length of its edges, so the simplest way to work out a perimeter is to work out the length...

Find me a tutor

We take your privacy seriously. View our policy.