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
marshall27 [118]
4 years ago
14

Can someone explain how to use sin cos and tan on right angled triangles

Mathematics
2 answers:
Karo-lina-s [1.5K]4 years ago
8 0

Here is the formula of sin cos tan :

sin x = opposite/hypotenuse

cos x = adjacent / hypotenuse

tan x = opposite / adjacent

d = hypotenuse

x = the angle known in your pic

like example if in your picture:

adjacent = 26.5

if want to find the d

cos x = adjacent / hypotenuse

cos 56 = 26.5 / d

d = 26.5 : cos(56)

d = 47.390 (3 significant figures)

and if want to find the opposite

tan x = opposite/adjacent

tan 56 = opposite/ 26.5

opposite = 26.5 × tan(56)

opposite = 39.288

-> Sorry if im wrong

eduard4 years ago
6 0
<h3>Answer:  d = 47.3897287242421 approximately</h3>

Round this however you need to

=================================================

Explanation:

The reference angle is 56 degrees. The side 26.5 is adjacent to this angle as it is the leg closest to the angle (in contrast to the opposite leg or opposite side that is furthest from the reference angle)

The hypotenuse is d. The hypotenuse is always the longest side. The longest side is always opposite the largest angle of a triangle.

We will use the cosine ratio as it is the ratio of adjacent over hypotenuse

cos(angle) = adjacent/hypotenuse

cos(56) = 26.5/d

d*cos(56) = 26.5

d = 26.5/cos(56)

d = 47.3897287242421

You use your calculator for the last step shown above. Make sure your calculator is in degree mode. Round that value however you need to.

You might be interested in
Please help it’s for Alex
nasty-shy [4]
Okay so the y is in absolute value, which means the number could be a negative and the absolute value would make is a positive.
since the sign is greater than, with no equal to underneath it, than the answer cant be 3 or -3.
the number has to total to be larger than 3. again, since the absolute value turns the negatives into positives, then -4 is an acceptable answer. so the absolute value line should look like the above (please excuse the terrible look). I simplified it to the two numbers that start the equation. the two circle are open circles because the sign does not include an equal sign under it. you draw the arrows on either side of the two numbers because any answer beyond those arrows fits in with the equation
| 4 |
| 184728 |
| -4.5829492994929492949572728 |

did that answer the problem?

5 0
4 years ago
The height of a triangle is 4 cm more than twice its base. The area of the triangle is
il63 [147K]

Answer:

1/2 bh <= 168

1/2 b(2b+4) <= 168

or, use x instead of b if you want.

3 0
3 years ago
How do you solve 2.1d=51.24
ella [17]
Divide both sides by 2.1

2.1d/2.1 = 51.24/2.1

And then your answer!

d = 24.4
5 0
4 years ago
Read 2 more answers
The axis of symmetry for a function in the form f(x) = x2 + 4x - 5 is x = -2. What are the coordinates of the vertex of the
umka2103 [35]

Answer:

(- 2, - 9 )

Step-by-step explanation:

The axis of symmetry passes through the vertex of the parabola.

Thus the x- coordinate of the vertex is x = - 2

To find y substitute x = - 2 into f(x)

f(- 2) = (- 2)² + 4(- 2) - 5 = 4 - 8 - 5 = - 9

Vertex = (- 2, - 9 )

8 0
3 years ago
Read 2 more answers
Please help with part b
kotykmax [81]
I don't know what ur supposed to do but if u add them it equals 31.9 sorry if that's not what you have to do
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the area of the following circle?
    8·1 answer
  • the slope of the line below is -4 write a point-slope equation of the line using the coordinates of the labeled point
    9·2 answers
  • How many dots are there at 100 minutes?<br><br> Please show work!<br><br> Thanks!
    7·2 answers
  • Select the correct equation rule​
    8·2 answers
  • What is the median of Restaurant A's food quality ratings?
    10·1 answer
  • Fuel efficiency, measured in miles per gallon, is a measure often considered by shoppers looking for a new car. The scatterplot
    12·1 answer
  • Freee 100 pooiinnttss!!!!! And
    5·2 answers
  • Here is the question that I need help for<br><img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B3%7D%7B2%7D%20s%20%3D%20%20-%
    12·1 answer
  • Please help. Will mark brainliest! Answer the questions
    15·2 answers
  • F(x) = | sin 3x | -3 find the maximum and minimum value
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!