Question

Find the value of x :​

Answer 1

Answer:

1st option is correct..

(i) 105° (ii) 60° (iii) 125°

Answer 2

Answer:

i) 105 degree

ii) 60 degree

iii) 125 degree

Step-by-step explanation:

Sum of all angles in triangle = 180

i) x + 30 + 45 = 180

x + 75 = 180

x = 180 - 75

x = 105

ii) x + 90 + 30 = 180

x + 120 = 180

x = 180 - 120

x = 60

Linear pairs are supplementary

iii) 60 + 65 + y = 180

125 + y = 180

y = 180 - 125

y = 55

x + y = 180

x + 55 = 180

x = 180 - 55

x = 125