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
e-lub [12.9K]
3 years ago
9

Maria want to make a footstool in the shape of a cylinder, as show below. She wants to fill the footstool with foam and cover it

with fabric. r=12in by h=18in
Mathematics
1 answer:
dexar [7]3 years ago
8 0

Answer:

She'll need 8143 cubic inches of foam and 1,809.6  square inches of fabric.

Step-by-step explanation:

Assuming you want to know how much foam and fabric she will need...

First the foam... so we need to determine the volume of that footstool.  The Volume of a cylinder is given by:

V = π * r² * h

So, we plug in the numbers:

V = π * 12² * 18 = π * 144 * 18

V = 2,592 π  = 8143 cubic inches.

Now for the fabric... we'll assume Maria wants to cover the side of the stool and the top, but not the bottom.

The side of the stool is basically a rectangle of width of 18 inches and a length of the circumference of the base of the stool.  The circumference is given by: C = 2 π * r of course, so C = 24π = 75.14 inches.

So the lateral surface of the cylinder is:

LS = 18 * 75.14 = 1,357.2 sq inches.

Then we need to calculate the area of the top... which is easy:

A = π * r²  = π * 12²  = 144 π = 452.4 sq inches

So, to cover the lateral side of the footstool and its top, she needs to use:

TA = 1,357.2 + 452.4 = 1,809.6 sq inches of fabric.

You might be interested in
Do 12 / 15 and 8 / 10 have the same value? Explain your answer.
yKpoI14uk [10]
Hello there!


12/15 and 8/10 don't have the same value.

Reason: 
let's simplify both.

12/3 = 4

15/3 = 5

12/15 = 5/4


8/2 = 4

10/2 = 5

8/10 = 4/5


5/4 is greater than 4/5

5/4 > 4/5


Hope i helped!

Let me know if you need anything else!

~ Zoe
3 0
3 years ago
Look at the graph below.<br><br> What is the slope of the line?
yarga [219]

Answer:

what graph

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Angela drive 82 miles on Monday. She drove 94 miles on Tuesday. To the nearest hundred, how many miles did Angela drive over the
Gennadij [26K]

Answer:

88 miles

Step-by-step explanation:

From the question I'm Presuming you are taking the average.

Add the two numbers together 82 + 94 = 176

Do 176 divided by 2 to get 88

You do divide by 2 because of the two days

3 0
3 years ago
barry's deck of cards contains 40 blue cards and 70 red cards. Max's deck of cards contains the same number of blue cards, but t
Amanda [17]
110
add all the number

8 0
3 years ago
Read 2 more answers
In a certain study,the chance of encountering a car crash on the road is staged as 22%. Express the indicated degree of likeliho
marissa [1.9K]
Wouldn't it be .22 probablilty value?
8 0
3 years ago
Other questions:
  • The statement tan theta= -12/5, csc theta=-13/5
    6·1 answer
  • PLEASE HELP<br><br><br> What is the value of x?
    6·1 answer
  • WORK THIS CHALLENGE EXERCISE. A is known to be 6,500 feet above sea level; AB = 600 feet. The angle at A looking up at P is 20°.
    11·2 answers
  • A child is observing squirrels in the park and notices that some are black and some are gray. For the next five squirrels she se
    6·1 answer
  • How many gallons of a 3% salt solution must be mixed with a 7% salt solution to obtain 100 gallons of a 5% salt solution.
    10·1 answer
  • PLEASE HELP IM STUCK:(
    14·1 answer
  • Do what it says pls will give brainliest
    6·1 answer
  • GIVING BRAINLIEST!!!!!!PLS HELP :((
    14·2 answers
  • Name the scale of the number line shown.
    15·1 answer
  • What fraction benchmark is .58 closest to?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!