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What is the area of this triangle?

What is the area of this triangle?-example-1
What is the area of this triangle?-example-1
What is the area of this triangle?-example-2
User Jespar
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The correct answer choice is
User Doofus
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Use the vertical side as the base. The base has length y2 - y1.

Use a segment drawn from vertex (x3, y3) perpendicular to the base as the height. The height has length x3 - x1.

area = base * height/2

area = (1/2)(y2 - y1)(x3 - x1)

Answer: D. (1/2)(y2 - y1)(x3 - x1)

User Peter Mularien
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