Question

solve it plzz i wnt to answer the question immediately ​

Answer 1

Answer:

90

Step-by-step explanation:

A-90

B-45

C-45

B+C-A

45+45-90

Answer 2

Answer:

∠A=90°

Step-by-step explanation:

∠A+∠B+∠C=180°

∵∠A=∠B+∠C

∴∠A+∠A=180°

or,  2∠A=180°

or, ∠A=180°/2

∴∠A=90°

   HOPE IT HELPS