Question

find the value of y in the following figure​

Answer 1

i) y = 345°

as it is a complete angle so,

360° - 15°=345°

ii) y=65°

here, sum of all angles is 360°

So,

50° + 40° +130° + 2y + 10°=360°

2y + 230°=360°

2y = 360° - 230°

y = 130°

2

y = 65°

iii) y= 110°

here, sum of all angles is 360°

So,

90° + 40° + 140° + y = 360°

270° + y = 360°

y = 360° - 270°

y= 110°

i hope it will help you