Question

I Really Need Help With This Please.

Answer 1

ABC=DBC

(This will probably be a way more complex explanation than you need but it’s what I did.)

Okay so you know B=B because they’re both right angles. You know A=D because of the isosceles triangle theorem- if two sides of a triangle are congruent, then the angles opposite those sides are congruent. That leaves C=C. If B=B and A=D and all triangles add up to 180 degrees, C and C need to be the same.

Answer 2

Answer:

the third option

Step-by-step explanation:

the middle alphabet must be the angle point. since the angle point for ABC is B and B is a right angle, the other right angle is D