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Answer: 9 in Area is 1/2 base x height So 18 = 1/2 b x 4 That means the base is 36/4 or 9

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What is the formula to get the area of a triangle?

The formula to calculate the area of a triangle is A = 1/2 * base * height, where A represents the area, the base is the length of the triangle's base, and the height is the perpendicular distance from the base to the opposite vertex. This formula is derived from the fact that the area of a triangle is half the product of its base and height. By plugging in the values for the base and height into the formula, you can easily determine the area of the triangle.


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