Attempt following question by selecting a choice to answer.
c
Find the value of
x in the figure shown.
cccc ccccA.
c85
B.
c50
C.
c17.5
D.
c40
cc
D
Step 1: ∠NMP = 180o[∠NMP is a straight angle.]
Step 2: ∠NMP = x° + (3x + 20)° = (4x + 20)° = 180°[Use Angle Addition Postulate and Simplify.]
Step 3: 4x = 160[Subtract 20 from both sides.]
Step 4: x = 40[Divide by 4 on both sides.]