Question

10. Find the value of x in each figure :
(i) 2x + 30° & 3x - 20°
(ii) 3x - 10° & 2x - 20°​

Answer 1

Step-by-step explanation:

In figure (i),

Since the angles are vertically opposite, they are equal,

2x + 30 = 3x - 20

x = 50°

In figure (ii),

Since the angles are linear paired, they sum up to 180°,

3x - 10 + 2x - 20 = 180

5x = 210

x = 42°

Answer 2

Answer:

I) 2x+30=3x-20

2x-3x= -20-30

Therefore, x=50