Question

(b) In the figure alongside, AB I BC and a - b= 10° then find the values of a and b.​

Answer 1

• a-b=10--(1)

Same side interiors(vertical) have sum 180°

• a+b=180--(2)

From both equations

• 2a=190
• a=95

And

• a-b=10
• b=95-10
• b=85