Question

Calculate the unknown marked angles in each figure:- ​

Answer 1

Answer:

80

Step-by-step explanation:

y+80+20=180

y=180-100

y=80

Answer 2

Answer:

Two angles are given 80° and 20°

So, sum of all angles of a triangle = 180°

So, 180 - (80 + 20)

= 80°

Therefore the measure of the another angle will be 80° Answer

Step-by-step explanation:

Hope the answer would be helpful for you