So you will have to find the difference between each number so 6--2=8
and 8--2=10. So then I'm guessing you have to round 8 to 10. Sorry if this isn't all correct.
Answer:

Step-by-step explanation:
we know that
The formula to calculate the area for a trapezoid is equal to

where
a and b are the parallel bases
h is the height of trapezoid
A is the area
<em>Solve for a</em>
That means ----> isolate the variable a
Multiply by 2 both sides to remove the fraction in the right side

Divide by h both sides

Subtract b both sides

Rewrite

The given triangle is a Right angled triangle,
By applying trigonometry :

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