1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
RSB [31]
3 years ago
11

If you know the area of a circle, how can you find it's radius?​

Mathematics
2 answers:
pickupchik [31]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

The area (A) of a circle = πr² ← r is the radius

If A is given then to find r

πr² = A ( isolate r² by dividing both sides by π )

r² = \frac{A}{\pi }

Take the square root of both sides

r = \sqrt{\frac{A}{\pi } }

posledela3 years ago
3 0

You have the correct idea. The area A of a circle is given by A = π r2 where r is the radius of the circle and π is approximately 3.1416. Dividing both sides of this equation by π gives A/π = r2 and hence if you know A, divide it by π and then take the square root to find r.

You might be interested in
Vu has 2 pizzas that he cuts into sixths how many 1/6-size pizzas does he have?
const2013 [10]
12 slices in total (6 slices per pizza)
8 0
3 years ago
Read 2 more answers
To train for a race, Scott wants to run 20 miles this week. He runs 14 of the miles on Monday.
nalin [4]

Answer:

Scott will need 3 more to meet his goal

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A die is tossed.find. find the odd against rolling a number greater than 1
SashulF [63]
5/6 :):):););(:);(:();:)(:;)(:(;;
6 0
4 years ago
Terms that contain the same variable and raised to the same power are called _________.
blondinia [14]
The correct answer is like terms. Hope this helps.
3 0
3 years ago
If T: (x, y) → (x - 3, y + 2), then T -1: (x,y) → _____.
tatyana61 [14]

Answer:

(x + 3, y - 2)

Step-by-step explanation:

we know that

The rule of the transformation T is equal to

T: pre-image → image

T: (x, y) → (x',y')

T: (x, y) → (x - 3, y + 2)

so

x'=x-3 ----> x=x'+3

y'=y+2 ----> y=y'-2

The rule of the inverse of transformation T -1 is equal to

T-1: image → pre-image

T-1: (x', y') → (x,y)

T-1: (x', y') → (x'+3, y'-2)

6 0
3 years ago
Other questions:
  • Simplify.<br> (WILL GIVE BRAINLIEST)
    7·1 answer
  • Which situation is best represented by the following equation?<br> 45w + 123.95<br> 753.95
    5·1 answer
  • To win a game, Francine needs to move more than 10 spaces
    9·1 answer
  • Elio makes candles that are 14 cm tall. Each candle burns 8 hours before going out. He is wondering how many hours a 21 cm tall
    12·1 answer
  • 1. The student council at Camp Creek Middle School determines that 3 out of 4
    14·2 answers
  • Find six rational numbers between 9 and 10​
    15·1 answer
  • Y = 2x + 1<br> y = -2x + 1<br> y = -2x - 0.5<br> y = 2x - 0.5
    7·1 answer
  • 2x + 2 = x + 3 Please help asap
    9·1 answer
  • What the is the y-intercept of this equation: 4x = 2y +6
    13·1 answer
  • A sum of money was shared between Joan and Ngozi in the ratio 5:3. If Joan share was 40.00naira how much was the original sum of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!