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
umka2103 [35]
3 years ago
14

Which triangle is ​△MNO​ similar to and why? △MNO is similar to △GHK by ​ AA Similarity Postulate ​. ​△MNO​ is similar to △DEF b

y ​ ​ AA Similarity Postulate ​. △MNO is similar to △PQR by ​ ​ AA Similarity Postulate ​. ​△MNO​ is not similar to any of the triangles given. NOTE: Figures are not drawn to scale. Four triangles of different sizes. Triangle N M O has angle N M O measuring seventy-nine degrees and angle M O N measuring twenty-two degrees. Triangle G H K has angle H G K measuring seventy-nine degrees and angle H G K measuring seventy-nine degrees. Triangle P Q R has angle P R Q measuring twenty degrees and angle R Q P measuring seventy-nine degrees. Triangle D E F has angle D E F measuring eighty-two degrees and angle D F E measuring twenty-two degrees.\
Mathematics
1 answer:
andrew11 [14]3 years ago
7 0
<span>MNO is similar to GHK by AA Similarity Postulate

   Let's start by listing each triangle and the measurements of all three angles. For each triangle, we've been given the measurements of 2 of the angles and the 3 angle will simply be 180 minus the other 2 angles. I assume you can do the subtraction, so I'll simply list each triangle with all three angle measurements.
 NMO: 79, 22, 79
 GHK: 79, 79, 22
 PQR: 20, 79, 81
 DEF: 82, 22, 76
   And the triangles NMO and GHK are similar to each other since they have the same angles. The order really doesn't matter since it's OK for similar triangles to be rotated or reflected. The key thing to remember in a triangle is that if you've been told what 2 of the angles are, you also know what the 3rd angle is since the sum of the angles of a triangle will always be 180.
So the answer is:
 MNO is similar to GHK by AA Similarity Postulate"</span>
You might be interested in
A garge floor measures 150 feet by 120 feet .a scale drawing on tbe floor on grid uses a scale of 1 unit : 15 feet what are the
o-na [289]

Answer:

8 units by 10 units

Step-by-step explanation:

150 \div 15 = 10 \\ 120 \div 15 = 8

8 0
3 years ago
Please Help. I really don’t get this concept, if you could explain it in detail it would be very appreciated
Dafna11 [192]
<h3>Answer: 24/25</h3>

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

Explanation:

Sine is given to be negative, and so is tangent. This only happens in quadrant Q4

Recall that y = sin(theta), so if sin(theta) < 0, then we're below the x axis.

If tan(theta) < 0, then this means cos(theta) > 0

So we have y < 0 and x > 0 which places the angle somewhere in Q4.

--------------------------

Draw a right triangle as shown below in the attached image. We have AC = 25 and BC = 7. Use the pythagorean theorem to find that AB = 24

So this is what your steps may look like

a^2+b^2 = c^2

7^2+b^2 = 25^2

b^2+49 = 625

b^2 = 625-49

b^2 = 576

b = sqrt(576)

b = 24

So because AB = 24, we know that the cosine of the angle is adjacent/hypotenuse = 24/25

---------------------------

As an alternative, you could use the trig identity

sin^2(x) + cos^2(x) = 1

and plug in the given value of sine to solve for cosine. The cosine value result will be positive since we're in Q4.

So,

sin^2(x) + cos^2(x) = 1

(-7/25)^2 + cos^2(x) = 1

(49/625) + cos^2(x) = 1

cos^2(x) = 1 - (49/625)

cos^2(x) = (625/625) - (49/625)

cos^2(x) = (625-49)/625

cos^2(x) = 576/625

cos(x) = sqrt(576/625)

cos(x) = sqrt(576)/sqrt(625)

cos(x) = 24/25

This is effectively a rephrasing of the previous section since the pythagorean trig identity is more or less the pythagorean theorem (just in a trig form)

6 0
3 years ago
What is each number in scientific notation? Drag the answer into the box to match each number. 0.0000855 ?8.55×10?5? 855,000
Vera_Pavlovna [14]
I'm confused on what you're asking, but this is scientific notation on the first one of 0.0000855. 8.55 x 10^-5

7 0
2 years ago
Read 2 more answers
2/9 of Mrs. Hanak's 18 students are Minton walkers. How many students dismiss as Minton walkers?​
Alex

Answer:

2*2=4, 9*2=18, so 2/9 = 4/18, 4 students are Minton walkers.

Step-by-step explanation:

4 0
3 years ago
Plz help Evaluate. 5⋅40
lana [24]

<em><u>Answer: =200</u></em>

Step-by-step explanation:

This question it's about PEMDAS. This lesson it's about order of operations. p-parenthesis, e-exponents, m-multiply, d-divide, a-add, and s-subtract. It can also go left to right. multiply by the numbers. product it's going to be multiply by the numbers, fractions, factors, and multiples.

5*40=200

40*5=200

200/5=40

200/40=5

Hope this helps!

Thanks!

Have a great day!


4 0
3 years ago
Other questions:
  • -8-8(6n+1) solve using distributive property
    14·1 answer
  • Solve the equation. |2x + 4|= 8
    13·1 answer
  • pls helpppp c=30m+50 and c=20m+100. solve for c and show your work.
    8·1 answer
  • PLEASE HELP ASAP
    9·1 answer
  • Find y when x=14 if y varies directly with x2 and y=72 when x=6
    5·2 answers
  • Evaluate Expressions
    6·1 answer
  • WILL GIVE BRAINLIEST!! PLEASE ANSWER ASAP
    11·1 answer
  • 2x=26 <br> what calculation would need to be done to solve this problem
    6·2 answers
  • A Zoo Has a Elephant to giraffe ratio of 1 to 5. There are 18 Total animals. How many are giraffes? (Please Answer Quickly i rea
    12·1 answer
  • The graph below shows the motion of a ball rolling on a straight track, what was the ball's average speed during the time repres
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!