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What is the area of this figure ​

What is the area of this figure ​-example-1
User NikSp
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2 votes

Answer:

54 square units

Explanation:

A line (red in the attachment) can divide the figure into two triangles and a trapezoid. The formulas for the areas of these are ...

area of a triangle = (1/2)bh . . . . . where b is the base and h is the height

The triangle on the upper left has a base of 3 and a height of 2, so an area of ...

upper left triangle area = (1/2)(3)(2) = 3 square units . . . . area shown in red

The triangle on the upper right has a base of 6 and a height of 1, so an area of ...

upper right triangle area = (1/2)(6)(1) = 3 square units . . . . area shown in yellow

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The formula for the area of a trapezoid is ...

area of a trapezoid = (1/2)(b1 +b2)h . . . . where b1 and b2 are the lengths of the parallel bases, and h is the height

The trapezoid has an upper base length of 9 and a lower base length of 7, and a height of 6, so its area is ...

area of bottom trapezoid = (1/2)(9 + 7)(6) = 48 square units . . . . area shown in green

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Then the total area of the figure is the sum of the areas of its non-overlapping parts:

total area = upper left triangle area + upper right triangle area + trapezoid area

= (3 + 3 + 48) square units = 54 square units

What is the area of this figure ​-example-1
User Eddie Cooro
by
7.6k points

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