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Mathematics 7 Online
OpenStudy (kailee1423):

Find the value of x. The diagram is not to scale. A. x=60 B. x=21 C. x=15 D. none of these

OpenStudy (kailee1423):

OpenStudy (eli_moses):

D

OpenStudy (eli_moses):

x=18

OpenStudy (kailee1423):

Can you explain it?

OpenStudy (eli_moses):

ok

OpenStudy (eli_moses):

so you have two parallel sides already and you know that the total degrees of a triangle is 360.

OpenStudy (eli_moses):

Angle STU = 180-(Angle STR)

OpenStudy (kailee1423):

Ok I get it now. Thank you!:)

OpenStudy (eli_moses):

no problem

OpenStudy (kailee1423):

Do you mind if I ask you more questions? I don't have long to answer them.

OpenStudy (kailee1423):

Can you use the SAS Postulate, the AAS Theorem, or both to prove the triangles congruent? A. either SAS or AAS B. SAS only C. AAS only D. neither

OpenStudy (kailee1423):

This might be the only one. I just don't understand questions like this.

OpenStudy (eli_moses):

i didn't learn that one yet sorry

OpenStudy (kailee1423):

Oh ok. Thanks anyways:)

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