3 years ago

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

1 answer:

7 0

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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