Question

Lines PQ and RS intersect at O, forming the angles as shown in the figure. If a = 35^o, the values of b and d are

• A. b =145^o, d = 145^o
• B. b = 120^o, d = 105^o
• C. b = 105^o, d= 35^o
• D. b = 100^o, d = 120^o

Answer 1

The correct option is A

b =145^o, d = 145^o

b = 180^o a = 145^o (linear pair),

b = d = 145^o (vertically opposite angles)