Ask your own question, for FREE!
Mathematics 7 Online
bill533:

https://static.k12.com/nextgen_media/assets/8095118-NG_GMT_NP024_299.jpg Is △FHK similar to △GHJ ? If so, which postulate or theorem proves these two triangles are similar? A.​ △FHK ​ ​ is similar to ​ ​ △GHJ ​ ​ by the ​ ​ SSS Similarity Theorem ​. B.​ △FHK ​ ​ is similar to ​ ​ △GHJ ​ ​ by the ​ SSA Similarity Theorem ​. C.​ △FHK ​ ​ is similar to ​ ​ △GHJ ​ ​ by the ​ ​ ​ SAS Similarity Theorem . D.​ △FHK ​ ​ is not similar to ​ ​ △GHJ ​​.

bill533:

@Shadow

MARC:

Side-Side-Side (SSS) Similarity Theorem - If the lengths of the corresponding sides of two triangles are proportional, then the triangles must be similar. \(\frac{FH}{GH}=\frac{HK}{HJ}\) \(\frac{22}{10}=\frac{33}{15}\) \(2.2=2.2\) Thus,the lengths of the corresponding sides of two triangles are proportional. Therefore,the triangles are similar. Hope,this helps.

bill533:

it's C ?

bill533:

@MARC

MARC:

Nope,good try tho XD Hint : Side-Side-Side (SSS) Similarity Theorem - If the lengths of the corresponding sides of two triangles are proportional, then the triangles must be similar. Since,we were able to prove that the lengths of triangle FHK and triangle GHJ are proportional ,therefore both the triangle must be similar.

MARC:

The Side Angle Side postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent. pssss,we weren't given any information about the angles of \(\triangle~FHK~~~and~~~\triangle~GHJ\)

MARC:

http://prntscr.com/m4qcc3

bill533:

I Can't see it sorry

MARC:

we weren't given any information about the angles of those triangles meaning to say \(SAS~theorem~~~and~~~SSA~theorem\) is not applicable for both the triangles

bill533:

When two triangles have corresponding angles that are congruent and corresponding sides with identical ratios, that would mean that the triangles are similar.

MARC:

Option D is wrong Because both the triangles are similar

MARC:

wait,let me check again Hmmm

MARC:

ah,u r right SSS theorem is not applicable because they didnt give all the sides SAS theorem is applicable although they didnt give the angle,but from the diagram it looks like both the triangles of the angle are congruent

bill533:

ok i hope you thought i was right

bill533:

NOTE: Figures are not drawn to scale. https://static.k12.com/nextgen_media/assets/1582624-IM2_150227_2_Q018Q.jpg Which triangle is ​△ABC​ similar to and why? A. △ABC is similar to △GHI by ​ AA Similarity Postulate . B. △ABC is similar to △JKL by ​ AA Similarity Postulate ​. C. △ABC is similar to △DEF by ​ AA Similarity Postulate ​. D. ​△ABC​ is not similar to any of the triangles given.

MARC:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @bill533 ok i hope you thought i was right \(\color{#0cbb34}{\text{End of Quote}}\) u r answer is correct :)

MARC:

u might wanna make a new thread >.<

bill533:

ok

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!