Answer:7
Step-by-step explanation:
The area of parallelogram is 108 square inches
<em><u>Solution:</u></em>
<em><u>The formula for area of parallelogram is:</u></em>

From given,


<em><u>Convert feet to inches</u></em>
1 feet = 12 inches

<em><u>Therefore, area of parallelogram is:</u></em>

Thus area of parallelogram is 108 square inches
The angles all add up to 180
42 + 42 + x = 180
84 + x = 180
x = 96
x = the third angle