Question

Identify the unknown angles please.

Answer 1

Answer:

90

90 both are 90

total sum of angles is 180 so

Answer 2

$\huge \mathbb\fcolorbox{black}{lightcyan}{Answer}$

The unknown angle is 90° cause the square type sign is used to indicate 90°

let the missing angel be " X"

x + 45+45=180 ( sum of triangle is 180)

x=180-90

x=90

for another traingle

x +60+30=180

x+90=180

x=180-90

x=90°