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
vesna_86 [32]
3 years ago
12

What is the area of a circle that has the diameter of 4?

Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0
The answer to this question is A≈12.57
Vikentia [17]3 years ago
3 0

Answer:

Hello! answer: 12.56

Step-by-step explanation:

Area for circles is found be doing

radius × radius × pi since we arent given radius we have to figure it out. But what we do know it diameter is just 2 times the radius so to undo that to find our radius we just do 4 ÷ 2 and 4 ÷ 2 = 2 so 2 is our radius now we will square it which is just fancy for multiply is by itself so 2 × 2 = 4

4 × 3.14 = 12.56 So 12.56 is our area! Hope this helps you!

You might be interested in
HELP ASAP. Teacher didnt teach us this.
mina [271]

Answer:

A = 624

B = 14.76 or 14.8 or 15inches

Standard form in polynomial for Area = 26 x 24 = .624in^2.....

2(5 + 8) x 2( 5 + 7)

26 x 24 = 624 in^2

This is because the rectangle width indifference is 1/10th of the length measuring 2inches more, then we see both sides of the frame are equal to 2inches and match this measure for x = 2inches both width and length. We add 4 to each side 22 x 20 + 4x^2 we separate 4x^2 into 4x both sides, this has become 26 x 24 = 624in^2

as 4 was added each side.

Question 2.  

We find the width is shown left to right in rectangles, they are the sides.

So Area 4 x 24 = 96in^2

or 6.5 of the 24 = 24/6.5 = 3.69 inches

26 /6.5 = scale of 6.5: 26 = 4 inches

Therefore Area = 3.69 x 4 = 14.76

if it was square frame it would be 16inches

Go for 14.76in^2 as ithe question says 4 inches and it becomes, a replaced width only and it must be still to scale as shown above with 24/6.5 = 3.69  so 3,69 x 4 = 14.76. Last resort would be that the length as kept at 24 x 4 = 96 and in this response it does exactly what the question asks the width changes only.

5 0
3 years ago
How much would $200 invested at 6% interest compounded annually be worth after 5 years? Round your answer to the nearest cent. D
Varvara68 [4.7K]
$310.26 is what it would be worth
4 0
3 years ago
Teesha is in the French club. There are 38 students in the club. The French teacher will pick 2 students at random to guide visi
Naily [24]
If the probability that she will be picked is 2/38 = 1/19
then the probability that she won't be picked is 36/38 = 18/19
3 0
4 years ago
Read 2 more answers
Jonah and his brother ran a race. Jonah reached the finish line in 68.49 seconds and his brother reached the finish line 4.66 se
bulgar [2K]
73.15 is your answer
6 0
3 years ago
Read 2 more answers
Find two ratios equivalent to the ratio in exercise 1<br><br> 8:5<br> 4:19<br> 6:23
Ne4ueva [31]
To find equivalent ratios just factor the same number to both numerator and denominator. I will make the ratios simple by multiplying 2/2 and 3/3 to the originals. To check, set as fraction and cross multiply and you should have the same number. I will show you how to check by doing it to the first ratio.

8:5 16:10 24:15

Check:
8/5 = 16/10
(8)(10)=(5)(16)
80=80

8/5=24/15
(8)(15)=(5)(24)
120=120

4:19 8:38 12:57

6:23 12:46 18:69
5 0
3 years ago
Other questions:
  • A golden rectangle is a rectangle whose length is approximately 1.6 times its width.the early greeks thought that a rectangle wi
    15·1 answer
  • This is the question: -10.7 + (- 3.5 )
    14·2 answers
  • Which of the following describes a situation in which the total distance a baseball player travels is zero meters from his start
    12·1 answer
  • Write 44/3 as a whole or mixed number in simplest form.
    14·2 answers
  • Please help I will mark!!
    7·1 answer
  • Please help I’ll mark brainliest please!!!!!
    7·1 answer
  • A die is rolled. Which is the probability of rolling an even number or a number greater than 4?
    15·1 answer
  • Which are the ones that are a function, and not a function
    7·1 answer
  • Solve for x <br> 3(4x-1)+9-x=2x+8+9x
    15·1 answer
  • Answer as much as youd like, and pls pls pls dont take my points I actually need help
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!