Write a complete two-column proof for the following information. Hint: Use the Angle Addition Theorem and the fact that a line i

Part 1) side 1=15'-7" side 2=20'-4" side 3=26'-2" To determine the total length of all three sides, add them together: total length=side 1+side 2 +side 3. By substituting, total length=15'-7"+20'-4"+26'-2" can be expressed as total length=(15'+20'+26')+(7"+4"+2"). This simplifies to total length=(61')+(13"). Keep in mind that 12"=1', so 13" can be expressed as 12"+1"=1'+1". By substituting again: total length=(61')+(1'+1") simplifies to total length=(62')+(1") which leads to 62'-1". Therefore, the total length of the three sides is 62'-1".

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Four statements:
 1) Start by dividing the x-axis into equal segments.
 2) n = 212/5 = 42.4.
 3) Each segment along the x-axis represents 42.4. This means you can plot the point -212 at x = -5
 4) The y-axis can keep its magnitude and you can plot the coordinate of -4 at y = -4