Respuesta :

All angles have to add up too 180
So we know B is 90 since it’s a right triangle
and A and C have to be the same
So 180-90=90
Then divide by 2
90/2=45
Gabby1123

Answer:

45°

Step-by-step explanation:

AB and BC are congruent which mean ∠BAC and ∠BCA are congruent.

We already know ∠ABC is 90°.

We cans set up the equation with what is given.

180 = 90 + 2c

Subtract 90 from both sides.

90 = 2c

Divide both sides by 2

45 = C

So angle C is 45°

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