Lesson 7.2: Converse of Pythagorean Theorem

Lesson 7.2

Understand the Converse of the Pythagorean Theorem​

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​Definition:

Converse: The converse basically means the opposite. In regards to the Pythagorean Theorem, it says if a² + b² = c², then the triangle must be a right triangle.

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The most common way we will use this is we will be given 3 side lengths and we will be asked to prove if it is a right triangle.​

Subject | Subject

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​Determine if this triangle is a right triangle:

Multiple Choice

Is a triangle with side lengths 2, 6 and 9 a right triangle?

• Yes

• No

Multiple Choice

Determine the missing side length

• 65

• 11

• 8.06

• 3

Multiple Choice

Is a triangle with side lengths 4, 5 and 6 a right triangle?

• Yes

• No

Multiple Choice

Is a triangle with side lengths 21, 20 and 29 a right triangle?

• Yes

• No

​Conclusion: Write two complete sentences about what you learned.