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
PIT_PIT [208]
3 years ago
13

Find the area of a circle with diameter 12 cm

Mathematics
2 answers:
andreyandreev [35.5K]3 years ago
7 0

Answer:

113.143 cm²

Step-by-step explanation:

Radius=diameter/2=12/2=6 cm

Now

Area of a circle=πr²

=(3.16)(6)²

=(3.16)(36)

=113.143 cm²

Svetlanka [38]3 years ago
6 0

Answer: 113.04 cm²

Step-by-step explanation: To find the area of a circle, start with the formula for the area of a circle which is shown below.

A = \pi r^{2}

Notice that here, we're given the diameter instead of the radius. Remember that the radius is equal to half of the diameter so the radius of this circle will be equal to half of 12 cm or 6 cm.

So plugging into the formula, we have (\pi)(6 cm)^{2}.

A common mistake is to plug 12 cm into the formula but remember that we must plug in the radius and not the diameter.

Multiplying. (6 cm)² is equal to 6 cm · 6 cm or 36 cm².

So we have 36π cm².

So the area of the circle is 36π cm³.

Now, remember that π is approximately equal to 22/7 or 3.14 so we can estimate the area of the circle by plugging in 3.14 for π.

So we have (36) (3.14) which is equal to 113.04 cm².

So the area of the circle is approximately equal to 113.04 cm².  

You might be interested in
A single die is rolled. Find the probability of getting an odd number or a number less<br> than 5.
Eddi Din [679]

Answer:

Answer:Rolling a odd number is 1/5 and rolling a number less than five is 3/5

Step-by-step explanation:

3 0
2 years ago
Daria earns $17.50 per customer when she gives haircuts if she gave X haircuts on Monday and Y haircuts on Tuesday which express
fomenos

Answer:

where are the expressions??

7 0
3 years ago
One year, a farmer harvested 50,000 bushels of wheat on her family farm.
Zanzabum
The answer is C, hope this helps
4 0
3 years ago
Okay google how many pennies are in $25,000
GalinKa [24]
There are 2,500,000 pennies in $25,000
4 0
3 years ago
HELP PLS <br> Comparing irrational numbers with calculator<br><br> Compare.
julia-pushkina [17]

Answer:

3 2/3 is greater

Step-by-step explanation:

3 2/3 is 3.6666 while √11 is 3.32

6 0
3 years ago
Other questions:
  • Triangle D E F is shown. Angle D E F is a right angle. The length of hypotenuse D F is 5 StartRoot 2 EndRoot and the lengths of
    13·2 answers
  • An equation is shown below: 8(2x – 14) + 13 = 4x – 27 Part A: Write the steps you will use to solve the equation, and explain ea
    7·1 answer
  • The triangle area is 90ft^2 and the height is 10 what's the base
    14·1 answer
  • Find the surface area of the given prism.
    5·1 answer
  • Write and solve the equation and then check your answer.
    12·1 answer
  • I need help with this<br>​
    11·2 answers
  • PLEASE NEED SOME HELP
    12·1 answer
  • Lines m and n are cut by transversal l. which angle relationships are correct? check all that apply.
    15·1 answer
  • Solve each linear Any quality other than all real numbers graph the solution set on a number line​
    15·1 answer
  • 4. What is the standard form of the equation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!