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
gulaghasi [49]
3 years ago
9

The circumference of a circle is 16π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.

Mathematics
2 answers:
TiliK225 [7]3 years ago
7 0

Answer:

64\pi

Step-by-step explanation:

The area of a circle can be found using:

a=\pi r^{2}

We have the circumference, but we need the radius. Circumference can be found using:

c=2\pi r

We know the circumference is 16\pi, so we can substitute that in for c

16\pi =2\pi r

We need to solve for r, or the radius. To do this, divide both sides by 2\pi. This will get r by itself.

16\pi /2\pi =2\pi r/2\pi  

8=r

Now we know the radius, and can substitute it into the area formula

a=\pi r^2

Substitute 8 in for r

a=\pi 8^2

a=64\pi

This answer is expressed in terms of pi, since it includes pi in the answer. Therefore, the area, in terms of pi is 64\pi

zepelin [54]3 years ago
4 0

Answer:

64 pi

Step-by-step explanation:

lmk if you need an explanation

You might be interested in
What is the value of 3x^2 + 5x + 25, when x = 3<br> (3x^2 means 3x squared)
pentagon [3]
I got 67 but I can guarantee it’s right
8 0
2 years ago
A circle has radius 50 cm. Find the area of the circle to the nearest hundredth.
padilas [110]
Multiply by 2 which will get you a diameter and then multiply it by pi which is 3.14.
7 0
2 years ago
Solve for x. 3x+2=38
SpyIntel [72]
Subtract the two over to cancel it out
3x=36
then divide by 3 to get an answer of
x=12
8 0
2 years ago
Read 2 more answers
Select the postulate that is illustrated for the real numbers.
bulgar [2K]
<span>Multiplication identity.
Any number multiplied by 1 will have a solution of the original number</span>
4 0
3 years ago
Read 2 more answers
As a lifeguard, you can earn $5 per day plus $7.50 per hour. How many hours you must work to earn $50 in one day?
ELEN [110]

Answer:

Step-by-step explanation:

Earnings = 5 + 7.50x  You want to earn 50.00

50 = 5 + 7.50x             Set up equation  

45 = 7.50x                    Subtract 5

45/7.50 = (7.50/7.50) x Divide by 7.5

x = 6

You need to work 6 hours.

3 0
3 years ago
Other questions:
  • 3/5 of the students in a classroom are girls. If there are ten boys in the class, how many total students are there?
    15·2 answers
  • A bird-watcher estimates the number of songbirds to the number of birds of prey he will see on a bird-watching trip. His predict
    7·2 answers
  • Anna earns 50 points every time she shops at a grocery store. She needs a total of 3,470 points to receive a free prize. So far
    6·2 answers
  • Which system of equations has one solution?
    7·2 answers
  • Answer number 11 pls
    8·1 answer
  • Write the following expression in exponential form:<br><br> 1.6 × 1.6 × 1.6 × 1.6
    12·2 answers
  • :D PLS HALLLPP ASAP WILL GIVE BRAINLIEST
    15·2 answers
  • 1.) 63 is 75% of what number?
    11·1 answer
  • Did I get this right? Please help me
    6·2 answers
  • A rectangle is removed from a right triangle to create the shaded region shown below. Find the area of the shaded region.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!