In a 2

In a thirteen sided polygon, the sum of five angles is 1274°, four of the eight angles remaining are equal and the other four are 18° less than each of the equal angles. Find the angles. .

Correct result:

A =  9
B =  -9

Solution:


1274 + 4A + 4B = 180•(13-2)
B = A - 18

702A+702B = 0
A-B = 18

A = 9
B = -9

Our linear equations calculator calculates it.



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Showing 1 comment:
#
Dr Math
A = 97.25 (4 angles)
B = 79.25  (last 4 angles)
first 5 angles cannot be determined

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