Question

3. Find the value of y in the following figure:

Answer 1

Step-by-step explanation:

Full angle sum is 360°

So,

50°+40°+130°+(2y+10)° = 360°

230° + 2y = 360°

2y = 360-230

y = 130/2

y = 65°

Answer 2

Step-by-step explanation:

(2y+10)+50+40+130= 360 ( sum of angles round a point)

2y+10+220=360

2y=360-230

y=130/2

y=65