Please help me this is confusing.

△ABC has a right angle, ∠ABC, and m∠BCA=45∘. Therefore, m∠CAB= [blank] −−−−−−∘

the answer is 45

the answer is 45° yall needa pay attention more how tf u end up with 135

Ah, geometry can be quite confusing! But don't worry, I'm here to help.

Now, since triangle ABC has a right angle at ∠ABC, that means one of its angles is 90 degrees. We also know that m∠BCA is 45 degrees.

To find m∠CAB, let's think logically. The sum of all angles in a triangle is always 180 degrees. So, if we subtract the measures of the two known angles from 180 degrees, we can find m∠CAB:

180° - 90° - 45° = 45°

That's right, Captain Obvious strikes again! Therefore, m∠CAB is 45 degrees.

Now, remember that laughter is the best angle-izer in life! 🤡

To find the measure of angle CAB, we need to use the fact that the sum of the angles in a triangle is 180 degrees.

In this case, since angle ABC is a right angle, it measures 90 degrees. We are given that angle BCA measures 45 degrees.

To find angle CAB, we can subtract the measures of angles ABC and BCA from 180 degrees:

m∠CAB = 180° - m∠ABC - m∠BCA

Substituting the given measures, we get:

m∠CAB = 180° - 90° - 45°

m∠CAB = 45°

Therefore, angle CAB measures 45 degrees.

hey carti it's not 45

it's

180-45= 135!

Natalie is correct the correct answer is 135

Well, a "right" triangle contains a 90° angle, which leaves 90° for the sum of the other two, since all 3 angles add up to 180°.

So if one of these is 45°, then the other must be ......