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
olga nikolaevna [1]
3 years ago
13

Find the area of a circle with a diameter of 56 millimeters.

Mathematics
1 answer:
ANEK [815]3 years ago
6 0

Answer: 784π mm²

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.

Area = πr²

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 56 millimeters or 28 millimeters.

So plugging into the formula, we have (π)(28 mm)².

A common mistake is to plug 56 millimeters into the formula but remember that we must plug in the radius and not the diameter.

Multiplying, (28 mm)² is equal to (28 mm)(28 mm) or 784 mm².

So we have 784π mm².

So the area of the circle is 784π mm².

You might be interested in
How to solve this problem step by step. Make brainliest answer if its done. Please
sladkih [1.3K]

D is halfway between A and B

so the coordinates of D are (2,2)

E is halfway between A and C so the coordinates of E are (-1,1)

now you need to find the gradient/slope of DE and BC using the formula:

\frac{y2 - y1}{x2 - x1}

<h3><u>G</u><u>r</u><u>a</u><u>d</u><u>i</u><u>e</u><u>n</u><u>t</u><u> </u><u>o</u><u>f</u><u> </u><u>D</u><u>E</u><u>:</u><u> </u></h3>

SUB IN COORDINATES OF D AND E

\frac{1 - 2}{ - 1 - 2}

therefore the gradient of DE is 1/3.

<h3><u>G</u><u>r</u><u>a</u><u>d</u><u>i</u><u>e</u><u>n</u><u>t</u><u> </u><u>o</u><u>f</u><u> </u><u>B</u><u>C</u><u>:</u></h3>

<em>S</em><em>U</em><em>B</em><em> </em><em>I</em><em>N</em><em> </em><em>C</em><em>O</em><em>O</em><em>R</em><em>D</em><em>I</em><em>N</em><em>A</em><em>T</em><em>E</em><em>S</em><em> </em><em>O</em><em>F</em><em> </em><em>B</em><em> </em><em>A</em><em>N</em><em>D</em><em> </em><em>C</em>

<em>\frac{ - 2 - 0}{ - 3 - 3}</em>

therefore the gradient of BC is -2/-6 which simplifies to 1/3.

<h3>therefore, BC and DE are parallel as they both have a gradient/slope of 1/3 and parallel lines have the same gradient</h3>

6 0
4 years ago
The function f(x) = 4(4)x represents the growth of a fly population every year in a remote swamp. Jackie wants to manipulate the
otez555 [7]
Around the rate would be 0.10
4 0
3 years ago
Read 2 more answers
Find the missing side length BM. Round answer to the nearest tenth.
xenn [34]

Answer: BM = 21.4

Step-by-step explanation:

Considering the given triangle BMS, to determine angle BM, we would apply the sine rule. It is expressed as

m/SinM = s/SinS = b/SinB

Where m, s and b are the length of each side of the triangle and angle M, Angle S and angle B are the corresponding angles of the triangle.

From the information given,

Angle M = 102°

Angle B = 35°

Angle S = 180 - (102 + 35) = 43°

b = MS = 18

s = BM

Therefore

18/Sin 35 = BM/Sin 43

Cross multiplying, it becomes

BMSin35 = 18 × Sin 43

BM × 0.5736 = 18 × 0.6820

0.5736BM = 12.276

Dividing the left hand side and the right hand side of the equation by 0.5736, it becomes

0.5736BM/0.5736 = 12.276/0.5736

BM = 21.4

6 0
3 years ago
If Jonny has three apples and divided it by four how many does he haveesft
Serga [27]

3/4 of an apple per person

5 0
3 years ago
Read 2 more answers
On the fifth orbit, the space shuttle Freedom was as close as 110 miles from Earth and as far away as 180 miles from Earth. By h
Varvara68 [4.7K]

180 - 110 = 70
4 0
3 years ago
Read 2 more answers
Other questions:
  • The tabel shows the amount of miles of Cheryl travels 4 each day.About how many miles did she travel during the 4 days?
    7·1 answer
  • To the nearest hundredth, what is the distance between point (-6, -1) and point (4, 3)?
    10·2 answers
  • What is 5/11 in decimal form? (round your answer to the nearest hundredth.)?
    10·1 answer
  • Simplify this expression; -15k-1+12+2k​
    11·1 answer
  • The distance traveled by a car going 65 miles per hour for 3.5 hours is
    14·1 answer
  • Write an expression that shows how to multiply 4 x 362 using place value in expanded form
    7·2 answers
  • If x and y are different numbers from 1-50 what is the greatest possible value for (x+y)/(x-y)
    5·1 answer
  • a figure that has a vertex at (2,3) has the y-axis as a line of symmetry. Tell the coordinates of another vertex of the figure
    6·1 answer
  • How many fluid ounces are in 3 1/4 cups?
    7·2 answers
  • Find f(g(x)) f(x)=2x-5 , g(x)=4x+3
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!