Answer:
The angles are supplementary and the sum of the angles is 180 degrees.
let's solve for a
Step-by-step explanation:
This is a 30°-60°-90° triangle, so automatically, , and .
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2=(3,-2)
3=(-4.75,-6.25)
4=(5/2,3/2)
5=87.8(simplified)
240 cubic feet
l×w×h
12×4=48
48×5=240