The surface of a table to be built will be in the shape shown below. The distance from the center of the shape to the center of
each side is 7.8 inches and the length of each side is 9 inches.
Part A: Describe how you can decompose this shape into triangles. (2 points)
Part B: What would be the area of each triangle? (5 points)
Part C: Using your answers above, determine the area of the table's surface. (3 points)
1 answer:
Part a : you could draw a line from each corner to the middle
This would give you 7 triangles in total
Part b : area of one triangle : 4.5*7.8 = 35.1 / 2 = 17.55in <-- area of 1 triangle
Part c : so if there are 7 triangles and the area of 1 triangle is 17.55, you would do:
7 * 17.55 = 122.85
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