i dont get most of this stuff

Try to practice upon it and you might get it, or just use khan academy's practice a lot. Hope it helps

How can you tell the difference between SAS and SSA? (Assume you had a problem and had to chose if it was sim. because of SAS or SSA, how would you figure it out?)

SAS means that the angle is in between the two sides in question. SSA means the angle is not in between.

An equation is a statement with an equals sign. So _3 + 5 = 8_ and _5x + 12 = (x / 4) + 3_ are both equations, but _24 * 9_ and _3y ≥ x - 8_ are not equations.

Main content

High school geometry

Course: High school geometry > Unit 4

Lesson 2: Introduction to triangle similarity

Triangle similarity review

CCSS.Math:

HSG.SRT.B.5

Google Classroom

Review the triangle similarity criteria and use them to determine similar triangles.

What are the triangle similarity criteria?


AA	Two pairs of corresponding angles are equal Two triangles. One triangle is smaller than the other. Both triangle have two angles that are congruent.
SSS	Three pairs of corresponding sides are proportional Two triangles. One triangle is smaller than the other. The smaller triangle has side lengths a, b, and c. The larger triangle has side lengths a times k, b times k, c times k.
SAS	Two pairs of corresponding sides are proportional and the corresponding angles between them are equal Two triangles. One triangle is smaller than the other. The smaller triangle has side lengths a and b. The larger triangle has side lengths a times k and b times k. The angle between the side lengths of the smaller triangle is congruent to the angle between the side lengths of the larger triangle.

Want to learn more about the triangle similarity criteria? Check out this video.

Check your understanding

Problem 1

Current

Which triangle is similar to triangle A?

Want to practice more problems like this? Check out this exercise for the AA criterion and this exercise for the SSS criterion.

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grace.mews
Posted 4 years ago. Direct link to grace.mews's post “i dont get most of this s...”
i dont get most of this stuff
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(15 votes)
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- KhanAcademy101
  Posted 3 years ago. Direct link to KhanAcademy101's post “Try to practice upon it a...”
  Try to practice upon it and you might get it, or just use khan academy's practice a lot. Hope it helps
  Comment on KhanAcademy101's post “Try to practice upon it a...”
  (13 votes)
meowcatmeow
Posted 6 years ago. Direct link to meowcatmeow's post “How can you tell the diff...”
How can you tell the difference between SAS and SSA? (Assume you had a problem and had to chose if it was sim. because of SAS or SSA, how would you figure it out?)
Button navigates to signup pageComment on meowcatmeow's post “How can you tell the diff...”
(8 votes)
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- Ezra
  Posted 3 years ago. Direct link to Ezra's post “SAS means that the angle ...”
  SAS means that the angle is in between the two sides in question. SSA means the angle is not in between.
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  (12 votes)
Martinez, Rayleen; 200807072
Posted 3 years ago. Direct link to Martinez, Rayleen; 200807072's post “The videos im watching is...”
The videos im watching is not adding up to the working you guys are giving me. Im so lost.
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(6 votes)
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JAKE617
Posted 3 years ago. Direct link to JAKE617's post “Define Equation”
Define Equation
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(0 votes)
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- Evan
  Posted 3 years ago. Direct link to Evan's post “An equation is a statemen...”
  An equation is a statement with an equals sign.
  
  So 3 + 5 = 8 and 5x + 12 = (x / 4) + 3 are both equations,
  but 24 * 9 and 3y ≥ x - 8 are not equations.
  Button navigates to signup page
  (8 votes)
Hayden
Posted 3 years ago. Direct link to Hayden's post “why does this make sense”
why does this make sense
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(4 votes)
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- Cadet Shore
  Posted 4 months ago. Direct link to Cadet Shore's post “Because it just does.”
  Because it just does.
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Tim O
Posted 4 days ago. Direct link to Tim O's post “What other triangle simil...”
What other triangle similarity criteria can be used?
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(1 vote)
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AHHHHH, MONSTERS!
Posted a year ago. Direct link to AHHHHH, MONSTERS!'s post “gelp im in 8 doing this w...”
gelp im in 8 doing this while other people are doing calculus rn :sob:
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beauregard42
Posted 4 months ago. Direct link to beauregard42's post “Yo, man. This is how we d...”
Yo, man. This is how we do da thing. Firstly, if the triangles have 2+ matching corresponding angles, then it is similar. If it has side lengths that can be divided by a number, say X, and then match the side lengths of your other triangle, then it is similar. If it has 2 matching corresponding(see last sentence) sides, and the angle between these is the same, then it is similar. -Beauregard42. If this helps you, your welcome.
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zachary.foret
Posted 6 months ago. Direct link to zachary.foret's post “These lessons do not expl...”
These lessons do not explain SSS similar triangles very well. What lesson would help me understand the basics?
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- connormoorhouse51
  Posted 21 days ago. Direct link to connormoorhouse51's post “I suppose trying the Tria...”
  I suppose trying the Triangle Similarity postulates/criteria lesson, or going back and reading the articles and doing all of the practice problems may help you. Ultimately, in summary, the SSS similarity is used when every side can be multiplied by a constant to get the new side, for example, if AB/XY was 4, AC/AZ was 4, and BC/YZ was 4, it would be a SSS similarity because each value can be multiplied either by 4 or 1/4 (depending on which number is larger) which is defined as the constant. I hope this helps!
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1023712
Posted 5 years ago. Direct link to 1023712's post “SSS is congruent to ASA b...”
SSS is congruent to ASA because they all have side, angel side.
Perhaps there's another way to connect angel side angel with each other.
LOL its funny because both triangles are similar to triangle A.
How should we know if they do connect? We dont know yet how triangles are similar with each other.
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(0 votes)
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