What is the total area of the walls if the room is 20 by 35 and the walls are 9 feet?

sorry i need the points

step-by-step explanation:

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we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

hey there : ) your answer would be a.

step-by-step explanation:

answer: hello!

the answer to this problem is, d. (7.3)(8.52)=62.19