Answer:

Step-by-step explanation:
Given




See attachment
Required
Determine the density of the wood
First, we calculate the volume of the wood.

Substitute values for Length, Width and Height


The density is:


<em> --- approximated</em>
Answer:
1341.75
Step-by-step explanation:
<h3>
Answer: 19.1</h3>
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Work Shown:
tan(angle) = opposite/adjacent
tan(C) = AB/BC
tan(theta) = x/BC
tan(23) = (8.1)/BC
BC*tan(23) = 8.1
BC = (8.1)/tan(23)
BC = 19.0824041631723
BC = 19.1
In this case, rounding to 3 sig figs means we round to the nearest tenth.
Make sure your calculator is in degree mode.
Answer:
90 degrees
Step-by-step explanation:
All trapazoids are equal to 360 degrees.
so we can make an equation 2x+x+x=360 (the other corner would also be x because its an unknown value)
to simplify, 4x=360
you divide into both sides (360/4)
you get 90