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
vivado [14]
3 years ago
11

Which set of values could be the side lengths of a 30-60-90 triangle?

Mathematics
2 answers:
navik [9.2K]3 years ago
6 0
A triangle with 30°, 60° & 90° angles is called a semi equilateral triangle.

In such a triangle the hypotenuse equal the side of the equilateral triangle,  and the opposite side to the angle 30° is equal half the side of the equilateral or half the hypotenuse.

Assume the side equal 8 & the other 8/2 = 4. let's calculate the 3rd side by applying Pythagoras:

8²  = 4² + x² ;  64 = 16 + x²  or x² = 64-16 ; x² =48 and
x =√48 = √16. 3 = 4√3

So the 3 sides are 8, 4 and 4√3 (answer B)
jeyben [28]3 years ago
3 0
If we say that side "a" is the shortest (adjacent), side "b" is the second shortest (opposite), and side "c" is the longest (hypotenuse): then angle A would be 30°,  angle B would be 60°, and angle C would be 90°

tan B = b/a
 or
a tan B = b

they have 4 as the smallest value in all four options, so we know that a=4

4 tan 60° = b
tan 60° = √3
so, 4 tan 60° = 4√3
b=4√3

that leaves two options left, so now we find "c":

c^2 = (a^2) + (b^2)
OR
c= \sqrt{a^{2} + b^{2}}

c= \sqrt{4^{2}+(4\sqrt{3})^{2}}

c= \sqrt{16+48} \\ c=\sqrt{64} \\ c=8

so a=4, b=4√3, and c=8

Making your answer B
You might be interested in
100 points! Solve the equation identify any extraneous solutions.
9966 [12]

Answer:

A

Step-by-step explanation:

40+6=12

12*X=645

697+645=12500

then,

X=5 and 8

5 0
3 years ago
Read 2 more answers
at a party, everyone shook hands with everybody else. there were 66 handshakes. How many people shook hands?
Whitepunk [10]

Answer:

12

Step-by-step explanation:

0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)

7 0
3 years ago
Please help me ASAP!!!<br> WILL MARK BRAINLIEEST TO WHOEVER IS RIGHT
konstantin123 [22]

Answer:

The answer is 5 x 2 x 3 x 2 x 2

Step-by-step explanation:

It is just everything at the bottom multiplied together

4 0
3 years ago
Read 2 more answers
PLEASE HELP NOW!! If K is the set of all letters in the word “equation”, and L is the set of all letters of the word “inequality
satela [25.4K]

Answer:

e,q,u,a,t,i,n & EQUATIONYL

Step-by-step explanation:

K∩L:

First write both the words, equation and inequality down.

E Q U A T I O N

I N E Q U A L I T Y

You can see EQUATIN repeats in both of the words.

K∪L:

First write both the words, equation and inequality down.

E Q U A T I O N

I N E Q U A L I T Y

This time just write down all the letters EXCEPT the ones that repeat. EQUATIONYL

6 0
2 years ago
Salim says he cannot simplify the expression a^m • a^n. Complete the statement about Salim's claim.
Shkiper50 [21]

Answer:

Salim can simplify that and the answer will be a^m^+^n

Step-by-step explanation:

This is because of the law of multiplying powers, which states that you can add the exponents if the base is the same. So, you just add m and n and put that as the exponent and you will have the answer.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Easy Bucks... <br>For what values of y does the binomial 3y−5 belong to the interval (−1; 1)?
    12·2 answers
  • How would you solve the area
    11·1 answer
  • What is the probability that a point chosen at random in the given figure will be inside the larger circle and outside the small
    7·2 answers
  • Ktoś mi to rozwiarze pls
    7·1 answer
  • I need help please.
    12·2 answers
  • A manufacturer ships its products in boxes with edges of 4 inches. If 12 boxes are put in a carton and completely fill the carto
    15·1 answer
  • Question in the picture!!
    13·2 answers
  • Solve the equation: 3x + 5 = 17<br><br> Can you please help me?
    14·1 answer
  • The monthly utility bills in a city are normally distributed with a mean of $100 and a standard deviation of $12. Find the proba
    11·1 answer
  • Harrison has 40 CDs in his music collection.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!