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Question 3 Alexa wants to use an indirect proof to prove that all rectangles are not squares. She first assumes that all rectangles are squares. Alexa then provides the following counterexample to disprove her assumption. She concludes that all rectangles must not be squares. Which statement best describes Alexa's indirect proof? Alexa's proof is incorrect. She followed the steps of an indirect proof in the wrong order. O Alexa's proof is incorrect. She made an error in her assumption. O Alexa's proof is correct and contains no errors. Alexa's proof is incorrect. She made an error in her counterexample. #​

Answer 1

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Answer:
Alexa proof is incorrect. She made an error in her assumption

Solution:
Her Assumptions was wrong. Not all rectangles are square

Answer 2

Alexa's proof is incorrect. She made an error in her counterexample.

What is rectangle?

"It is a quadrilateral whose all angles measure 90°, opposite sides are parallel and equal in length."

What is square?

"It is a parallelogram whose all sides are equal in length and all angles measure 90° "

What is parallelogram?

"It is quadrilateral whose opposite sides are parallel and equal in length."

What is counterexample?

"It is a special kind of example that disproves a statement. "

For given question,

Alexa wants to use an indirect proof to prove that all rectangles are not squares.

We know that, to prove a theorem indirectly, we assume the hypothesis is false, and then arrive at a contradiction. It follows the that the hypothesis must be true.

Alexa first assumes that all rectangles are squares.

Then she provides counterexample as shown in the given diagram.

The diagram represents the parallelogram not a rectangle.

This means  she made an error in her counterexample.

Therefore, Alexa's proof is incorrect. She made an error in her counterexample.

Learn more about indirect proof here:

https://brainly.com/question/1626119

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