ShmoopTube

00:03

Here’s a question for you to shmoop ‘til you’re blue in the face…

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A triangle is formed by connecting the points A(-3, 2), B(11, 2), and C(4, 7) on the coordinate grid.

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What is the area of the resulting triangle?

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And here are the potential answers...

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This question is testing our ability to, well, draw...

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…and also whether we can just calculate area with some complex inputs.

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So we should know that the formula for area of a triangle is base times height divided by 2, right?

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If we don’t, we may want to take extreme measures to commit it to memory …

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So draw the triangle and we have negative 3 positive 2, 11, 2 and 4, 7… there we go...

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Here we can see that the base is given by this area – and we can count that it’s

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14 units… and the height is 1 2 3 4 5.

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So we just plug in the numbers to the formula and we get 14 times 5 over 2 or.. 35.

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Answer: C.

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As in, “Cubism.”

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