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
Kisachek [45]
3 years ago
8

Kim is building a triangular dog pen. She will use an existing 10 m wall as one side. She will then build a fence going out at a

45°
angle on one side of the wall and a 65° angle on the other side. How much chain-link fence is needed to complete the fence?
es )

Mathematics
2 answers:
Tema [17]3 years ago
8 0

Answer:

  17.2 ft

Step-by-step explanation:

The angle that the fence makes opposite the wall is ...

  180° -45° -65° = 70°

The law of cosines can be used to find the lengths of fence needed.

The fence opposite the 45° angle will have a length of ...

  short side = (10 ft)·sin(45°)/sin(70°) = 7.525 . . . feet

The fence opposite the 65° angle will have a length of ...

  long side = (10 ft)·sin(65°)/sin(70°) = 9.645 . . . feet

Then the total length of fence required is ...

  7.525 ft +9.645 ft = 17.170 ft

About 17.2 feet of chain-link fence is required to complete the enclosure.

_____

We have assumed there is no chain-link fence along the 10 ft wall.

_____

The Law of Sines tells you that for sides a, b, c and opposite angles A, B, C, you have ...

  a/sin(A) = b/sin(B) = c/sin(C)

For some given side 'a' and opposite angle A, the other two sides can be found from their opposite angles as ...

  b = sin(B)·a/sin(A)

  c = sin(C)·a/sin(A)

expeople1 [14]3 years ago
7 0
The correct answer would 27.2 m
You might be interested in
PLEASE HELP WILL GIVE BRAINLIEST 5 STARS AND A THANKS DUE IN 1 HOUR AND A HALF!!
Hunter-Best [27]

Answer: 2.3 / -3

Step-by-step explanation: If you want me to to explain it, just ask!

8 0
2 years ago
Read 2 more answers
Micah is watching a TV program that is 2 hours long during the program there are six commercials that are each 90 sec. How many
Sergeu [11.5K]

Answer:

111 minutes

Step-by-step explanation:

step 1

Find out how long are the six commercial

Multiply the number of commercials by 90 seconds

so

90(6)=540\ sec

Convert to minutes

Remember that

1\ min=60\ sec

540\ sec=540/60=9\ min

step 2

Subtract the duration of six commercials from the duration of the program

Remember that

1\ h=60\ min

so

2\ h=2(60)=120\ min

therefore

120-9=111\ min

4 0
3 years ago
A rectangle has a perimeter of 30 inches.
erastova [34]
The new perimeter would be 60. because the width and the height are doubled.
8 0
3 years ago
Please answer this asap for 15 pt
crimeas [40]

Answer:

Step-by-step explanation:

what is question that you whant my to answer

6 0
3 years ago
Will mark Brainliest! Which of the following is not a condition for a tessellation? The shape or shapes must be repeated. The sh
uysha [10]

Answer:

Option 1 is correct.

Step-by-step explanation:

We have to select the option which is not the condition of a Tessellation.

A tessellation is a regular pattern made up of shapes that perfectly fit together or we can say it is an arrangement of shapes closely fitted together, especially of polygons in repeated pattern with no overlaps and no gaps.

A tessellation use repeated shapes to completely cover a plane with no overlaps or gaps.

Daily life examples of tessellation are honey combs, to man-made objects, like architecture and quilts.

A tessellation can use one or more geometric shapes. Hence, from the given options only the first option is not a condition for tessellation.

6 0
2 years ago
Other questions:
  • ethan made a rectangular prism that has a volume of 16 cubic inches. What is one set of possible dimensions for ethans rectangul
    8·1 answer
  • Marco has 1 3/4 pounds of potato salad. How many 1/8 pound servings can he make?
    12·1 answer
  • Plz help <br><br> (32^-1/2)^-2/5
    5·1 answer
  • Find the mean(x) of the first ten prime number and hence show that sigma( x1 - x)= 0
    11·1 answer
  • 2 Original amount: 30
    13·2 answers
  • I need help with #9. I am stuck on this problem.
    11·1 answer
  • Find the solution to x2=28
    14·2 answers
  • I need help with this question.
    5·1 answer
  • A recipe for 1.5 batches of cookies uses 2 cups of sugar. How much sugar is used for each batch?
    13·2 answers
  • I need assistanceeeee
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!