How do you work out the radius of a circle from its area ?

2 answers:

7 0

Area of circle:

A = pi(r)^2

to solve for r radius, first divide both sides by pi:
A/pi = r^2

then sq root both sides:
sq root(A/pi) = r

so if you were given the area of a circle, divide the area by pi then find the square root to find the radius

goblinko [34]3 years ago

3 0

Answer:

u divide the area by 3.14

Step-by-step explanation:

it reverses the area

You might be interested in

Two drones are descending from the sky in vertical lines. A black drone is currently at an altitude of 1,170 feet and is droppin

bonufazy [111]

Answer:

<h2> $\sf hope☼︎ \: it \: helps$ </h2>

7 0

2 years ago

Which of the following points lies on the graph of y = 3x – 5?

Allushta [10]

Answer: (4, 7)

explanation: plug in the answers

8 0

3 years ago

What is the vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7?

Mandarinka [93]

<span>hello :
اthe vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7 is :
</span>(-5,7) because when : x= - 5 ...f(-5) = |- 5 + 5| + 7 = 0+ 7 = 7

7 0

3 years ago

Read 2 more answers

5. How many inch cubes does it take to fill a box with width 2 inches, length 3

lorasvet [3.4K]

Answer:

To fill your box with one inch cubes first cover the bottom. This takes 48 rows of small cubes, each row containing 72 cubes. Thus to cover the bottom takes 48 x 72 = 3456 cubes. Since your box is 6" high you need 6 layers of 3456 cubes or 6 x 3456 = 20736 cubes to fill the box.

6 0

3 years ago

Please help me Thank u

SCORPION-xisa [38]

Answer:

Step-by-step explanation:

Fist let's have a look :

(AB) is parallel with (CD) and there is a line crossing them both.

Now the first question : What is the size x ?

We notice that x and 53° are vertically opposite so they are corresponding angles
so the size of x is 53°

The second question : what is the size of y ?

We notice that y and 53° are alternate angles
so they are corresponding angles with same size
y=53°

The trick is to khow the situation where we have corresponding angles

8 0

3 years ago