If a triangle is a RIGHT TRIANGLE, then a2 + b2 = c2.

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Presentation transcript:

If a triangle is a RIGHT TRIANGLE, then a2 + b2 = c2. Pythagorean Theorem In a RIGHT TRIANGLE, the sum of the squares of the lengths of the legs is equal to the square of the length of the hypotenuse. In other words … If a triangle is a RIGHT TRIANGLE, then a2 + b2 = c2. Proof that the formula works! 1. Find the length of the missing leg. 9ft 15ft x

2. NAEP Question, Pre-Algebra In the right triangle, what is the length of AB? A. 8.5 B. 12 C. 13 D. 17 E. 30 3. Find the length of the missing side. Round to the nearest tenth. 10 cm 15 cm 4. Find the length of the hypotenuse. 36 15 5. In a right triangle, both legs measure 6 inches. Find the length of the hypotenuse to the nearest tenth.