Question

When written in the correct order, the sentences below create a paragraph proof of the Pythagorean Theorem using the diagram.

Let a represent the height and b represent the base of each triangle.

The area of one triangle is represented by the expression 1/2 ab.

(1) The area of the interior square is (a – b)2.

(2) The length of a side of the interior square is (a – b).

(3) By distribution, the area is a2 – 2ab + b2.

(4) The area of all four triangles will be represented by 4 •1/2 ab or 2ab.

The area of the exterior square is found by squaring side c, which is c2, or by adding the areas of the four interior triangles and interior square, 2ab + a2 – 2ab + b2.

Therefore, c2 = 2ab + a2 – 2ab + b2.

Through addition, c2 = a2 + b2.
Which is the most logical order of statements (1), (2), (3), and (4) to complete the proof?
Answer
(4), (1), (3), (2)
(4), (2), (1), (3)
(4), (2), (3), (1)
(4), (1), (2), (3)

Answer 1

The area of the exterior square is found by squaring side c, which is c2, or by adding the areas of the four interior triangles and interior square, 2ab + a2 – 2ab + b2.

Therefore, c2 = 2ab + a2 – 2ab + b2.

Through addition, c2 = a2 + b2.

Which is the most logical order of statements (1), (2), (3), and (4) to complete the proof?

Answer 2

Did you get this one?

Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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Answer 8

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Answer 9

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Answer 10

@Ryaan

Answer 11

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