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
ddd [48]
3 years ago
12

Equation for the area of a circle with a diameter of 31.6 cm. Use 3.14 for

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
6 0

Answer:

783.8696

Step-by-step explanation:

The way to find the area of a circle is to find the radius, multiply it by itself, then multiply by pi. The diameter is double the radius so we have to divide the diameter by 2 to find the radius. 31.6/2 is equal to 15.8, and if we plug it into our formula, we can find that the area is 15.8 * 15.8 * pi, and since we use 3.14 for pi, the area is 15.8 * 15.8 * 3.14. We can use a calculator for this part and find that the area of this circle is 783.8696.

tester [92]3 years ago
6 0

Area of a circle is PI x r^2

You are given the diameter, the radius is half the diameter:

Area - PI x 1/2(diameter)^2

Area = 3.14 x 1/2(31.6)^2

Area = 3.14 x 15.8^2

Area = 3.14 x 249.64

Area = 783.8696 sq. cm. ( Round answer as needed)

You might be interested in
Find the better definition of y-intercept.
ExtremeBDS [4]

Answer:

4

Step-by-step explanation:

that is the intercept of the line to y

6 0
3 years ago
Read 2 more answers
Find the product. 7. $458.29 × 6.3% 8. $280.12 × 7.75%
miskamm [114]

Answer:

7. 28.8722

8. 21.7093

Step-by-step explanation:

458.29 x .063=28.8722

21.7093 x .0775= 21.7093

6 0
3 years ago
Three more than the product of two and a number x
Nonamiya [84]

2x+3

You are taking two times a number, which is defined as x. That is equivalent to 2x. Then, you are adding three more to that product.

3 0
3 years ago
Read 2 more answers
Guys what is the correct answer? <br><br><br><br> RANDOM ANSWERS WILL BE MODERATED!
ASHA 777 [7]
2) AAA

or the angle-angle-angle postulate.

There are congruent angles (as seen by the lines on the angles) that indicate this is the accurate answer.

Let me know if I can be more help! <3
4 0
3 years ago
Read 2 more answers
What equation represents this sentence? 5 less than a number is 12. n−5=12 5=12−n 5=n−12 5−n=12
Lana71 [14]

Answer:

n-5=12

This is the answer

8 0
2 years ago
Other questions:
  • Simplify the expression using the exponent properties 5 ^ −4 x 5^ −3
    7·1 answer
  • PLEASE HELP!!! What is the simplified form of square root of 2160x^8/ 60x^2? Assume
    10·2 answers
  • What is 12.3 -(-9.6) =12.3 + 9.6 simplified?
    15·1 answer
  • the half life of c14 is 5730 years. Suppose that wood found at an archeological excavation site contains about 35% as much C14 a
    9·1 answer
  • A right cone has a surface area of 440 square inches and a radius of 7 inches. Find its slant height.
    11·1 answer
  • Can someone help me please
    8·1 answer
  • In ΔQRS, m∠Q =73°, QR = 21, and QS = 30. Find RS.
    11·2 answers
  • ANSWER QUICK PLEASEEE
    13·1 answer
  • If an ecosystem can only hold about 12-15 animals what is this called?​
    8·1 answer
  • Which of the following functions is NOT a polynomial function?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!