All categories

3 years ago

How do you find circumference using radius

Mathematics

2 answers:

Vanyuwa [196]3 years ago

4 0

Answer:

C=π×2r

Circumference is equal to pi times double the radius

hjlf3 years ago

3 0

Determine the radius of a circle. Let's assume it's equal to 14 cm.

Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm.

You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm².

Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm.

Use our circumference calculator to find the radius when you only have the circumference or area of a circle.

If you wish to calculate the properties of a three-dimensional solid, such as a sphere, cylinder or cone, it's best to use our volume calculator.

Hope this helped a little :)

You might be interested in

Use the number line to represent. -4 1/2 + 3 1/4. what is the sum?

dlinn [17]

Answer:

$\displaystyle A+B=-\frac{5}{4}$

Step-by-step explanation:

The Number Line

Let's call

$\displaystyle A=-4\frac{1}{2}$

$\displaystyle B=+3\frac{1}{4}$

Both numbers are given as mixed fractions. Let's convert them to improper fractions:

$\displaystyle A=-4\frac{1}{2}=-(4+\frac{1}{2})=-\frac{8+1}{2}=-\frac{9}{2}$

$\displaystyle B=3\frac{1}{4}=3+\frac{1}{4}=\frac{12+1}{4}=\frac{13}{4}$

The decimal values are A = -9/2=-4.5, B=13/4 = 3.25

Now represent the points in the number line. See the image below

Finally, calculate their sum:

$\displaystyle A+B=-\frac{9}{2}+\frac{13}{4}$

$\displaystyle A+B=-\frac{18}{4}+\frac{13}{4}=\frac{-18+13}{4}$

$\boxed{\displaystyle A+B=-\frac{5}{4}}$

4 0

3 years ago

Factor completely. 3h^4+24h^3+21h^2. BRAINLIST PLEASE HELP FAST!!!

mote1985 [20]

3h2 • (h + 7) • (h + 1) is the simplified version.

3 0

3 years ago

A right triangle has legs that are 10.1 inches and 12.2 inches long. what is the approximate length of the hypotenuse?

Nikitich [7]

A^2+b^2=c^2

(10.1)^2+(12.2)^2=c^2
102.01+148.84=c^2
250.85=c^2
15.8=c

Hypotenuse is approx 15.8 inches

8 0

3 years ago

Read 2 more answers

The area of the vegetable garden is 0.4 of the community area of 4.5 x 6.2 . What is the area of the vegetable garden?

Gala2k [10]

Answer:

11.16 units²

Step-by-step explanation:

Area of community area=4.5×6.2= 27.9 units²

Area of vegetable garden=27.9×0.4=11.16 units²

5 0

3 years ago

If (x, 9) is a solution to 5x - 2y = 12, what is the value of x ?

lina2011 [118]

X= 6

Explanation:

y=9 so rewrite the equation like this:

5x-2(9)=12

Multiply -2 by 9:

5x-18=12

Cancel out the -18:

5x-18=12
+18 +18

5x=30

Divide both numbers by 5:

5x/5 = 30/5

As an answer, you will get x=6:

Hope this helped:)

7 0

4 years ago