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
tigry1 [53]
3 years ago
6

Evaluate tan 30° without using a calculator by using ratios in a reference triangle.

Mathematics
2 answers:
Sloan [31]3 years ago
6 0

Answer: Root 3 / 3

Step-by-step explanation: Use unit circle trigonometry.

Ronch [10]3 years ago
4 0

Answer:

\frac{\sqrt{3} }{3}

Step-by-step explanation:

<em>hey there,</em>

<em />

< You are going to need to memorize the reference triangles for this. There are two of them: one has the angles of 45, 45, and 90 and the other has the angles 30, 60, and 90. Each side also have a value. There's ways to memorize them, so make sure you do that so you can solve these kinds of questions in the future!

Below, I attached a reference triangle for 30, 60, and 90. Here we are finding tan 30. tan = O/A. The angle we are using here is 30, so let's think about the adjacent, opposite, and hypotenuse sides.

tan = \frac{1}{\sqrt{3} }

Obviously, you can never have a square root in the denominator so bring it to the numerator and continue solving:

\frac{1}{\sqrt{3} } = \frac{1}{\sqrt{3} }(\frac{\sqrt{3} }{\sqrt{3} } ) = \frac{\sqrt{3} }{3}

The final answer of tan30 is square root of 3 divided by 3. >

<u>Hope this helped! Feel free to ask anything else.</u>

You might be interested in
What is the greatest common factor of<br> 44 and 92?<br> a. 2<br> b.4<br> c. 22<br> d. 1012
dangina [55]

Answer:

b. 4

Step-by-step explanation:

8 0
3 years ago
Joe is 20 years old. His sister is half his age less 7. How old is his sister?
MakcuM [25]
The answer is 3. 20/2=10 10-7=3
3 0
3 years ago
For lesson 4.6 practice A what are the answers for 1-16<br>​
sergey [27]
I need to be able to see it ...
5 0
3 years ago
The average elephant can carry up to 1250 pounds on its back. Four people are on its back, and they have a combined weight of 83
madreJ [45]
I'm pretty sure the answer is C. 400 pounds.
8 0
3 years ago
Read 2 more answers
How do you find the sides of a trangle when you already have your hypotenuses
PIT_PIT [208]

Answer

just reverse it. if you already have the long side plug it into the equation a2+b2=c2. and instead of adding youd subtract

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Using the greatest common factor for the terms, how can you write 56 + 32 as a product?
    9·1 answer
  • The sales tax in town is 7 percent. Kiki paid $35 in sales tax on a new stereo. What’s the price of the stereo
    5·2 answers
  • Find the indicated side of the triangle.<br> Please Help!!!
    5·2 answers
  • A(-3,-2) what is the answer
    15·1 answer
  • Help me answer this pls​
    15·1 answer
  • 60 POINTS!! Please help me out with these 2 questions
    10·1 answer
  • You want to buy a tent in the shape of a pyramid. The rectangular base is 35 square feet, with a height of 4 feet. What is the v
    13·1 answer
  • What is the height of this isosceles triangle?
    10·1 answer
  • Will give brainy) (GEOMETRY)( look at picture please)
    9·1 answer
  • 5 points free, good job
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!