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4 votes
The figure shown is often used to prove the Pythagorean theorem. Part of the proof is

showing that QRST is a square. The four sides of QRST are the same length. Which
explanation best completes the proof that QRST is a square?

1 Answer

4 votes

Answer:

Angles 1,2,3, form a stright line

Explanation:

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User Milan Adamovsky
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