Calculate the area of figure ABCD formed by the vertices A(-5,3), B(1,3), C(4,-1), D(-2,-1)?

Responses (2)

That is a pretty simple problem because the top and bottom are horizontal -- no conversions required. You just need to get into your text book and learn how to do it.

The line A(-5,3), B(1,3) is horizontal, 6 units long.

The line C(4,-1), D(-2,-1) is horizontal, 6 units long.

Since top and bottom are the same value, there is no conversion required. The area is simply 6 x 4. Get into your text material and study it until that seems obvious. You need to understand this concept perfectly.

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It's a parallelogram. But it can be made a rectangular. If you draw the picture using cartesian plane, you'll find the width is 6 and the length is 5. So, the area is 30 (from 5 x 6).

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