What are the lengths of the base and height of the pennant?

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08-11-2016
Geography

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What are the lengths of the base and height of the pennant?

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sash087 sash087 · Answer 1 · 2016-11-08T03:26:08+01:00

sash087 sash087

08-11-2016

the base of the pennant is 12 feet shorter than the height......A = (1/2) * b * h

80 = (1/2) * (h - 12) * h
160 = h^2 - 12h

12/2 = 6
6^2 = 36

h^2 - 12h + 36 = 160 + 36
(h - 6)^2 = 196
h - 6 = 14
h = 20

b = 8

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