To find the area of a trapezoid, we use the following formula:
1/2 (b1 + b2) h
b1 and b2 are bases of the trapezoid and h is the height. Knowing this, we can substitute the values we know of the top of the table.
1/2 (48 + 36) 30
Now, lets simplify what is in the parentheses.
1/2 84 30
Next, let's get rid of the fractions
42 30
Finally, let's perform the multiplication to get our final answer.
42 30 = 1260
Therefore, the area of the top of the table is 1260 inches².