Question

PLS ANSWER THIS QUESTION

Answer 1

a) x = 180-20+40+20 => 180-80

x= 100

Answer 2

In first part you have to add like this:-

40°+20°+X+20°=180°

then:-

add them

80°+X=180°

X=180°-80°

X=100°

this is your answer for first part

now for second part you have to subtract angle BOC from 180

third , fourth and fifth part are too easy try it