Determine if you can use the HL ! Congruence Theorem to prove triangle ABC cong triangle DCB If not, tell what else you need to know

Yes you can use the HL theorem

Explanation:

HL = hypotenuse leg

The tickmarks tell us about the congruent hypotenuse sides. This takes care of the "H" from "HL".

The "L" portion is because BC = BC (reflexive property) which are the congruent legs.

So we have enough info to use the HL theorem to prove the triangles are congruent.

Note: The HL theorem only works for right triangles.

5x+10 is the correct one

hope this

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step-by-step explanation: