Finding Area
Overview
We can use these formulas to find the area of other shapes as well.
For example…
Find the area of the trapezoid.
First decompose the shape into 2 triangles and 1 rectangle.
Next find the area of the triangles and the rectangle separately.
Triangle 1 | Rectangle | Triangle 2 |
---|---|---|
(6)(5) = 30 |
Next, add the areas together.
5 + 30 + 5 = 40
a = 40 ✓
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What is the area of the triangle?
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What is the area of the triangle?
area =
What is the area of the triangle?
area =
What is the area of the triangle?
area =
What is the area of the triangle?
area =