Answer :
The area of the composite figure that is formed from a rectangle and triangle is 100 cm²
Area of the composite figure
The area of the composite figure is the sum of the area of the whole figure.
Therefore, the composite figure can be divided into a triangle and a rectangle.
Hence,
area of rectangle = lw
where
- l = length
- w = width
area of the rectangle = 14 × 5 = 70 cm²
area of triangle = 1 / 2 bh
where
- b = base
- h = height
Therefore,
area of a triangle = 1 / 2 × 12 × 5
area of a triangle = 30 cm²
area of the composite figure = 30 + 70 = 100 cm²
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