That would be the commutative property
Explanation:
Datum: Area, <span>A=18<span>13</span>f<span>t2</span></span> and height, <span>h=31ft</span>
Required: Base of the parallelogram?
*Solution: Area, <span>A=b×h</span>
<span>18<span>13</span>f<span>t2</span>=b×31ft</span> solve for base, b
<span>b=<span>553</span>×<span>131</span>=<span>5593</span>=.591f<span>t</span></span>
Answer: 
<u>Simplify both sides of the equation</u>
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(Combine Like Terms)
<u>Subtract 17 from both sides</u>
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<u>Divide both sides by 2</u>
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52° would be the value of x
The answer is 48.
A= Hight x Width
Multiply 12 x 4 and you will get 48.
