Question

if BOC = [7x+20] degree ,COA = 3x and AOB is a straight line, then z = ?

Answer 1

Step-by-step explanation:

Given BOC=7x+20degrees

AOC=3x

therefore BOC+AOC=180 (Linear Pair)

7x+20+3x=180

10x=180-20

10x=160

x=160/10

x=16degrees

therefore x=z (Vertically opp.angles)

z=16degrees

Answer 2

Step-by-step explanation:

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hope this helps you