Find x in the following figure.
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Answer:
80⁰
Step-by-step explanation:
Sum of the exterior angles of any polygon is 360⁰.
Exterior Angles A + B + C + D + E = 360⁰
/_1 + 40⁰ + 60⁰+ x + 90⁰ = 360⁰
/_1 = 180⁰ - 90⁰ = 90⁰
( Exterior & Interior angles at A form a LINEAR PAIR)
90⁰+40⁰+60⁰+x+ 90⁰ = 360⁰
x + 280⁰ = 360⁰
x = 360⁰ - 280⁰
x = 80⁰
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