What is the perimeter, in cm, of quadrilateral ABCD if $AB \perp BC$, $DC \perp BC$, AB = 9 cm, DC = 4 cm, and BC = 12 cm?
What is the perimeter, in cm, of quadrilateral ABCD?
Hello Guest!
\(AB \perp BC, DC \perp BC\)
The perimeter is (9 + 12 + 4 + \(\sqrt{(9-4)^2+12^2}\)) cm = 38 cm.
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