1. 8/8
2. 6/6
3.9/9
4. 5/5
It usually works to use the formula for the area of a trapezoid.
A = (1/2)×(b₁ +b₂)×h
where b₁ and b₂ are the lengths of the parallel bases, and h is the height (the perpendicular distance between the bases)
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This is one of several area formulas it pays to memorize.
The slope of these two points are 1.7
