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
Leokris [45]
2 years ago
9

In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. If b=4.5 miles and c=6.3 miles,

what is the perimeter? If necessary, round to the nearest tenth.
Mathematics
1 answer:
Alina [70]2 years ago
8 0

Considering the Pythagorean theorem and the definition of perimeter, the perimeter of the triangle is 15.209 miles.

<h3>Right triangle</h3>

A right triangle is one that has an angle of 90º. The two sides that form the right angle are called legs, the opposite and longer side is called the hypotenuse.

<h3>Pythagorean theorem</h3>

The Pythagorean theorem is a mathematical premise that allows us to calculate the length of the sides of a right triangle.

The Pythagorean Theorem states the following:

<em>In any right triangle, the square of the hypotenuse is equal to the sum of the squares of the legs</em>.

The Pythagorean theorem is only applicable to right triangles.

<h3>Definition of perimeter</h3>

The perimeter of a flat geometric figure is the length of its contour and is obtained as the result of the sum of the sides of a flat geometric figure.

<h3>Perimeter of a triangle</h3>

In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. Knowing that:

  • b=4.5 miles.
  • c=6.3 miles.

Side a can be calculated by applying the Pythagorean theorem:

c²= a² + b²

Substituting the corresponding values:

6.3²= a² + 4.5²

Solving:

6.3²- 4.5²= a²

39.69 - 20.25= a²

19.44= a²

√19.44= a

<u><em>4.4090 miles= a</em></u>

On the other hand, the perimeter of the triangle is calculated by:

perimeter= a +b +c

Substituting the corresponding values:

perimeter= 4.4090 miles + 4.5 miles + 6.3 miles

Solving:

<u><em>perimeter= 15.209 miles</em></u>

Finally, the perimeter of the triangle is 15.209 miles.

Learn more about

the perimeter:

brainly.com/question/15267339

brainly.com/question/660488

brainly.com/question/25092270

Pythagorean theorem:

brainly.com/question/654982

brainly.com/question/21691542

You might be interested in
A local electronics store raised its prices on headphones by 20%. The headphones that Stan wants to buy now cost $36. How much d
atroni [7]
You would do 36$ -20% =28.8
4 0
3 years ago
Please help. I need to find the Slope and identify the type of Slope. I already know the type. (Number 11)
elena-14-01-66 [18.8K]
The slope =0. Horizontal lines have a slope of 0
4 0
3 years ago
Write 7.4 as a mixed number and as an improper fraction. Do not try to simplify your answers.
Brut [27]
<span>Write 7.4 as a mixed number and as an improper fraction. Do not try to simplify your answers. 
</span>
The answer is 37/5                                             
5 0
4 years ago
Read 2 more answers
Trigonometry:
Trava [24]

A. The approximate height of the building is 100 m

B. We can use the arc length formula to obtain an approximation of BC since angle A is small.

A.

The approximate height of the building is 100 m

To find the approximate height of the building, we consider the diagram.

From the diagram, we have that using trigonometry,

tanA = BC/AB

Now

  • A = 0.05 radians,
  • BC = height of building and
  • AB = 2 km = 2000 m
<h3 /><h3>Finding the value of BC</h3>

So, making BC subject of the formua, we have

BC = ABtanA

Substituting the values of the variables into the equation, we have

BC = ABtanA

BC =2000tan0.05

BC = 2000 × 0.05

BC = 100 m

So, the approximate height of the building is 100 m

B.

We can use the arc length formula to obtain an approximation of BC since angle A is small.

<h3 /><h3>Arc Length Formula</h3>

We know that the arc length formula L = rФ where

  • r = radius and
  • Ф = angle in radians
<h3 /><h3>The approximate height</h3>

Now BC = ABtanA

We know that Ф ≅ tanФ when Ф is small.

<h3 /><h3>The comparison</h3>

So, BC = AB × A which is the arc length formula with

  • L = BC,
  • r = AB and
  • Ф = A

So, we can use the arc length formula to obtain an approximation of BC since angle A is small.

Learn more about approximate height of building here:

brainly.com/question/3144976

7 0
2 years ago
BRAINLIEST ASAP! PLEASE HELP ME :)<br> thxx
olga nikolaevna [1]

Answer:

2nd point

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A cone with radius 6ft and a height of 12ft
    8·1 answer
  • The top of a 15-foot ladder leans against a wall, and the bottom of the ladder slides away from the wall at a rate of 4 ft/sec.
    13·1 answer
  • A laundry detergent box measures 12 inches by 8 inches by 2.5 inches. What is the volume of two boxes of detergent ?
    10·1 answer
  • There is 27 campers. This is nine times as many as the number of counselors. how many counselors are there?
    8·1 answer
  • Find the inverse of p(x)=-2x^2-10
    9·1 answer
  • The midpoint of a segment with endpoint (8, a) and (b, 4) is (−1, −1).
    9·1 answer
  • Use a graph to solve<br> 1/2|x + 1| + 1 = |x|
    15·1 answer
  • Help me with this pleaseee.
    12·2 answers
  • Create a proportion using the form = to represent the following word problem.
    13·2 answers
  • (math problem in picture)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!