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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?

 Nov 16, 2021
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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.

laugh  !

 Nov 17, 2021

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