Evaluate 21 - n for n = 3 * please help me with this
2 answers:
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Answer:
42 units²
Step-by-step explanation:
The figure is composed of a rectangle ( middle section) and 2 triangles with the same length base and height
Area of rectangle = 7 × 4 = 28 units²
Area of 2 triangles = 2 × × 7 × 2 = 14 units²
Area of figure = 28 + 14 = 42 units²
