Mathematics
Mathematics, 12.05.2020 01:57, noeminm105

Regina’s work to find the surface area of a square pyramid from its net is shown below. A square pyramid. The square base has side lengths of 9.4 inches. The triangular sides have a height of 11.9 inches. Surface area of the pyramid = 4 (one-half (9.4) (12.8)) + 9.4 squared = 329 square inches What error did Regina make? She should have used One-half (9.4) (11.9) to represent the area of a single triangle. She should have multiplied all the terms inside the parentheses by 4 when she simplified. She should have used One-half (4.7) (12.8) to represent the area of a single triangle. She should have used a different collection of shapes as the net of the pyramid.

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Regina’s work to find the surface area of a square pyramid from its net is shown below. A square pyr...

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