The Pythagorean Theorem

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Objective

I can use the Pythagorean theorem to find the length of a missing side in a right triangle when given the other two sides.

Part 1 of 3

Warm-up video

National Science Foundation News · 3:45

We don't generate video — this one is by National Science Foundation News on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

12 questions

1

State the Pythagorean theorem in your own words.

2

In a right triangle, which side is called the hypotenuse, and how is it related to the other two sides according to the Pythagorean theorem?

Part 3 of 3

Exit ticket

Quick comprehension check

A right triangle has legs of length 9 cm and 12 cm. What is the length of the hypotenuse? Show your work. A right triangle has a hypotenuse of length 17 m and one leg of length 8 m. What is the length of the other leg? Show your work. A right triangle has one leg of length 6 km and a hypotenuse of length 10 km. What is the length of the other leg? Show your work.

Sample answer included in the free materials

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Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

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