Question

please help and didn't do prank​

Answer 1

Answer:

hello....

good morning

Step-by-step explanation:

where is the figure???

Answer 2

Step-by-step explanation:

Let the triangles to be ΔABC and ∠B=∠A + ∠C

but,sum of angles of triangles = 180°

⇒∠A +∠B +∠C =180°

⇒∠B +∠B= 180°

⇒∠B =90°

thanks......