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
Zepler [3.9K]
2 years ago
11

Find the surface area of each figure.

Mathematics
1 answer:
timurjin [86]2 years ago
6 0

Answer:

For a cylinder of radius R and height H, the surface area is given by:

A = 4*pi*R^2 + H*(2*pi*R)

Where pi = 3.14

We can just use that formula for each one of the given cylinders.

1) We can see that the diameter is 10 yd, and the radius is half of the diameter, then the radius is:

R = 10yd/2 = 5yd

And the height is 3yd, then H = 3yd

Replacing these in the area equation, we get:

A = 4*3.14*(5 yd)^2 + 3yd*(2*3.14*5yd) = 408.2 yd^2

2) Here we can see that the diameter is 24 cm, then the radius is:

R = 24cm/2 = 12cm

And the height is H = 10cm

Then the area is:

A = 4*3.14*(12 cm)^2 + 10cm*(2*3.14*12cm) = 2,562.24 cm^2

3) In this case we have a radius equal to 12 cm, and a height equal to 7 cm, then the area is:

A = 4*3.14*(12 cm)^2 + 7cm*(2*3.14*12cm) = 2,336.16cm^2

4) Here is hard to see the measures, I think that here we have:

diameter = 8m

Then R = 8m/2 = 4m

And the height is also 8m, H = 8m

Then the area is:

A = 4*3.14*(4 m)^2 + 8 m*(2*3.14*4m) =401.92 m^2

You might be interested in
How will the area of the circle change if it is dilated by a scale factor of 1/2? The area will be 2 times greater than the orig
coldgirl [10]
We know that

[scale factor]=1/2
[dilated area of circle]=[original area of circle]*[scale factor]²
so
[dilated area of circle]=[original area of circle]*[1/2]²
[dilated area of circle]=[original area of circle]*[1/4]

therefore

the answer is
<span>The area will be 1/4 the original</span>
7 0
3 years ago
Read 2 more answers
You have 32 foot long fence there are 4 equal sections you paint 1/3 of on section what fraction of the fence did you paint
zheka24 [161]
2/32. Divide 32 by 4 to equal 8, and then divide 8 by 3 because that’s how much you painted, a third of a fourth
8 0
3 years ago
Find the sum of ∠BCD and ∠SBT in terms of x.
AleksAgata [21]
Let's\ \angle TCB=y^o\\\\\angle SBT\ is\ the\ exterior\ angle\ of\ \Delta TCB,\ therefore\ |\angle SBT|=x^o+y^o.\\\\|\angle\ BCD|\ +\ y^o=180^o-angles\ on\ one\ side\ of\ a\ straight\ line\\\\|\angle BCD|=180^o-y^o\\\\therefor\\\\\angle SBT+\angle BCD=x^o+y^o+180^o-y^o=x^o+180^o\\\\\boxed{Answer:\angle SBT+\angle BCD=x^o+180^o}
4 0
2 years ago
Read 2 more answers
25)
Liula [17]

Answer:

A) w=3

Step-by-step explanation:

4 x 3 = 12

This is the work when you plug in the numbers in the varible w

6 0
2 years ago
Read 2 more answers
The manager of a video game store found that 35 of the 140 people who preordered the latest baseball game canceled their orders
irina1246 [14]

Using the data presented in the problem, you are asked to predict the probability that future customers will cancel their preorders. To find the probability, you have to divide the number of people who cancelled their preorders by the total number of people who preordered.

35 people / 140 people = .25 or 25% probability that the future customers will cancel their preorders.

3 0
3 years ago
Other questions:
  • You have a loan for $1000 at 7.65 APR 100 of the loan is due each month and there is a penalty of 2% on the original amount were
    15·1 answer
  • considering the one time deposit and monthly went rent the equation y equals 1200+400x can be used to represent why the total co
    6·1 answer
  • The position-time graph of an object is shown below. What is the velocity of the object when time t = 2.5 seconds
    8·1 answer
  • Sabrina rode on a Ferris wheel at the state fair. The radius of the Ferris wheel was 133 feet.
    14·1 answer
  • 181.93 divided by -11.3
    11·2 answers
  • IF Triangle DEF JKL, find KL.
    8·1 answer
  • Two boxes sit on a desk. One has 5 pencils that are yellow, blue, red, green, and brown. The other box
    8·2 answers
  • Please help me please i really need help please
    9·1 answer
  • Tonya bought a blanket for ​$​32.87, a pillow for ​$11.25​, and a baseball cap for ​$17.75. She paid ​$60 and the rest she borro
    14·2 answers
  • Write an algebraic expression for each statement:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!