In △ABC, ∠ABC = 90∘, ∠BAC = 45∘ and ∠ACB = 45∘. What is this triangle called?

In △ABC, ∠ABC = 90∘, ∠BAC = 45∘ and ∠ACB = 45∘. What is

1.	In △ABC, ∠ABC = 90∘, ∠BAC = 45∘ and ∠ACB = 45∘. What is this triangle called?
Answer» In $△$ ABC, ∠ABC = 90 $^{\circ}$ , ∠BAC = 45 $^{\circ}$ and ∠ACB = 45 $^{\circ}$ . What is this triangle called?