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
Reika [66]
3 years ago
6

Calculate the area of a circle with a diameter of 6cm

Mathematics
2 answers:
USPshnik [31]3 years ago
7 0
Formula for area of circle:
A=πr²
Here diameter, d= 6 cm
Radius, r= d/2 = 6/2 = 3 cm
Put values
A= 3.14 x 3²
A=3.14 x 9
A=28.26 cm²

Answer: 28.26 cm²

UkoKoshka [18]3 years ago
4 0
Hey there!

We'll do it in terms of Pi, as a variable, and in terms of pi as 3.14

We know that since the diameter is from one side to the other in a circle, dividing it by 2 will give you the radius - the distance to the middle. We plug in this radius to our area formula:

a = \pi (r^2)
a = \pi (3^2)
a = 9\pi

If our area is 9 pi, we can multiply 9 by 3.14 to get an approximate value:

A = 3.14(9)
A = 28.26

Hope this helps!
You might be interested in
What is the value of c in the equation below? StartFraction 5 Superscript 5 Baseline Over 5 squared EndFraction = a Superscript
maw [93]

Answer:

125

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How to write 6.7 different ways
brilliants [131]
6.7
6 7/10
(You can do an infinite amount with fractions)
Six and seven tenths

3 0
3 years ago
Lacie wants to paint her bedroom walls. She gas to cover 1,165.5 square feet. About how many gallons of paint will she need? Gal
DanielleElmas [232]

Answer:

1. 4.66 gallons 2. 2.33 gallons 3. 1.55 gallons

Step-by-step explanation:

1. If her gallons cover is 250 square feet, the number of gallons of paint Lacie would need to cover 1,165.5 square feet of bedroom walls is

1,165.5/250 = 4.66 gallons

2. If her gallons cover is 500 square feet, the number of gallons of paint Lacie would need to cover 1,165.5 square feet of bedroom walls is

1,165.5/500 = 2.33 gallons

3. If her gallons cover is 750 square feet, the number of gallons of paint Lacie would need to cover 1,165.5 square feet of bedroom walls is

1,165.5/750 = 1.55 gallons

4 0
3 years ago
How to find the Perimeter?
SOVA2 [1]

Answer:

8+2\sqrt{20\\}\\

Step-by-step explanation:

2+2+2+2+\sqrt{20\\}\\+\sqrt{20\\}\\=8+2\sqrt{20\\}\\

4^2+2^2=h^2

20=h^2

h=\sqrt{20\\}\\

7 0
3 years ago
Help please I need answers for these questions
LekaFEV [45]

I think because the angles are corresponding/opposite to each other u equate them to 180°

7 0
3 years ago
Other questions:
  • Please help I really need your help
    15·1 answer
  • Please help ASAP please need to get this done
    7·1 answer
  • In City Lake, researchers caught, marked, and released 258 bass. Later, they took a sample of 130 bass and found that 26 were ma
    7·1 answer
  • Translate the word phrase into a math expression. six less than eight times a number
    9·1 answer
  • Write the slope intercept form of the equation. through (4,4) and (-5,4)
    9·1 answer
  • Suppose two sides of a square are given as x + 3 and 12 - x. What is its area?
    8·2 answers
  • Need help in #9 please explain
    10·1 answer
  • Solve the polynomial. <br><br> X^3 + 4x^3 - 11x - 30 = 0
    10·1 answer
  • A collector has a box of 32 figurines. The value of each figurine increased by $2.32 over the past year. The box of figurines is
    5·1 answer
  • From
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!