Mathematics jamb 2004

The sum of the interior angles of a pentagon is 6x + 6y. Find y in the terms of x

a

y = 90 - x

b

y = 150 - x

c

y = 60 - x

d

y = 120 -x

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Explanation

Correct Option
a

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Discussions (2)

MayowaJoyce
3 years ago

6x+6y=(5-2)×180°
6x+6y=3×180°
6y=540°-6x
6y/6=540°/6
y=6(90°-6x)/6
y=90°-x

MayowaJoyce
3 years ago

6x+6y=

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