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Mathematics 8 Online
OpenStudy (anonymous):

PLEASE HELP ASAP! Name the postulate or theorem you can use to prove....

OpenStudy (anonymous):

OpenStudy (anonymous):

Can you help me?

Directrix (directrix):

Yes.

OpenStudy (anonymous):

;D

Directrix (directrix):

I marked up the diagram with the given information.

Directrix (directrix):

You have right angles at vertex H, sides MH and HP congruent, and sides NM and PO congruent.

OpenStudy (anonymous):

Okay.

OpenStudy (anonymous):

is it AAS?

OpenStudy (anonymous):

retrice^

Directrix (directrix):

Look at the attachment to get an idea of what the postulate or theorem might be.

OpenStudy (anonymous):

Wait, no. That's not an option

Directrix (directrix):

>is it AAS? No. We do not have 2 pairs of angles congruent. AAS is not correct. Try again.

OpenStudy (anonymous):

CPCTC?

OpenStudy (anonymous):

Actually, wait. It's B?

Directrix (directrix):

No. CPCTC means corresponding parts of congruent triangles are congruent. We have not yet proved the triangles congruent. And, CPCTC is not a way to prove triangles congruent. Hint: the triangles are right triangles.

OpenStudy (anonymous):

OH D?

OpenStudy (anonymous):

My gosh, I feel like an idiot for guessing each one.

Directrix (directrix):

No. Not ASA because we do not have two pairs of congruent angles.

OpenStudy (anonymous):

You said Right Angles, So I'm guessing HL?

Directrix (directrix):

HL Theorem is correct. The hypotenuse and leg of one right triangle are congruent to the hypotenuse and corresponding leg of the other triangle so the triangles are congruent by HL Theorem.

OpenStudy (anonymous):

Thank you!!! Can you help me with any more questions?

Directrix (directrix):

Close this thread and open a new one, and i will try to help. You are welcome.

OpenStudy (anonymous):

Oh, thank yoU!

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