2004
Mathematics
JAMB
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
Correct Answer: y = 90 - x
Explanation
6x + 6y = (n - 2) 180 6x + 6y= (5 - 2) 180 6(x + y) = 3 * 180 x + y = (3 * 180)/6 x + y = 90o y = 90 - x
6x + 6y = (n - 2) 180 6x + 6y= (5 - 2) 180 6(x + y) = 3 * 180 x + y = (3 * 180)/6 x + y = 90o y = 90 - xTHIS WEEK's
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