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
12

Find the area and perimeter

Mathematics
1 answer:
pashok25 [27]3 years ago
8 0

Answer:

Part 1) The perimeter is P=172\pi\ ft

Part 2) The area is A=1,204\pi\ ft^2

Step-by-step explanation:

Part 1) Find the perimeter

we know that

The perimeter is equal to the circumference of the exterior circle plus the circumference of the interior circle

so

P=2\pi (50)+2\pi (36)

P=2\pi (86)\\P=172\pi\ ft

Part 2) Find the area

we know that

The area of the figure is equal to the area of the larger circle minus the area of the smaller circle

so

A=\pi (50)^2-\pi (36)^2

A=\pi (1,204)

A=1,204\pi\ ft^2

You might be interested in
Find the value of x to the nearest tenth. See linked picture below. Thanks!
Ber [7]
Answer: Choice D) 11

----------------------------

Work Shown:

cos(angle) = adjacent/hypotenuse
cos(35) = 9/x
x*cos(35) = 9
x = 9/cos(35)
x = 10.9869712988531 ... make sure your calculator is in degree mode
x = 11 ... rounding to the nearest tenth

6 0
3 years ago
Why are points and lines hard to define?
Sliva [168]
Because when we draw a point ,we draw a very very small line....one can see how this might lead to a problem.consider a line that is 1 inch long,what we want to looked at 1/1000 through that line it would still be a line.but,if we drew it ,it would look like a point....
4 0
3 years ago
Direction:Determine between what two integers the following square root of a number is. Select the letter of your choice below.
inn [45]

Answer:

jsa-ygso-fxk join girls

7 0
2 years ago
The moats separating people from the animals are 5 m wide for lions and 4 m wide for the elephants. If the lion’s moat is 4 m de
ZanzabumX [31]

Answer:

<em>The elephants' moat should be 3.2 meters deep.</em>

Step-by-step explanation:

Suppose, the depth of the elephants' moat is  x meter.

Width of the lions' moat is 5 meter and width of the elephants' moat is 4 meter.

Given that, the lion’s moat is 4 meter deep.

So, <u>according to the ratio of width and depth</u>, the equation will be.......

\frac{5}{4}=\frac{4}{x}\\ \\ 5x=4*4\\ \\ 5x=16\\ \\ x=\frac{16}{5}=3.2

Thus, the elephants' moat should be 3.2 meters deep.

3 0
3 years ago
5.7y-5.2=y/2.5 how to solve
11Alexandr11 [23.1K]

5.7y-5.2=y/2.5

Add 5.2 to both sides:

5.7y = y/2.5 + 5.2

y/2.5 = 0.4y

5.7y = 0.4y + 5.2

Subtract 0.4y from both sides:

5.3y = 5.2

Divide both sides by 5.3:

y = 5.2/5.3

y = 0.98113

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following functions has a nonlinear graph?
    8·1 answer
  • Ellen's best friend won the lottery with the numbers 4, 8, 15, 16, 23, 42. now, ellen buys a lottery ticket every day choosing t
    7·1 answer
  • Y/7 =2/x do those show direct variation ​
    15·1 answer
  • Write a proportion to solve this problem: if 12 math books weigh 40 pounds, how much would 18 math books weigh
    6·1 answer
  • Tyler painted a wall with a length of 28 feet and a width of 12 feet in 5 1/4 hours.
    11·2 answers
  • Please help with question 11
    15·2 answers
  • W • (-4+ z) = mz + 17
    14·1 answer
  • PLEASE HELP I WILL MARK BRAINLIEST!!!!
    6·1 answer
  • PLEASE HELP! 10 POINTS.
    6·2 answers
  • NEED ANSWER ASAP -50 POINTS
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!