Page 134 First, some definitions.

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Presentation transcript:

Page 134 First, some definitions. Right Triangle: a triangle with a right angle (90 degrees) as the largest angle. The right angle is often marked with a square. Hypotenuse: The longest side of a right triangle – the side across from the right angle. Legs: The two shorter sides of a right triangle that form the right angle.

The leg across from ∠A is labeled with a small a. The leg across from ∠B is labeled with a small b. The hypotenuse is labeled with a small c.

About 550 BC, Pythagoras, a Greek philosopher, mathematician, and astronomer, figured out that the lengths of the sides of a right triangle are connected by a formula. The Pythagorean Theorem is named after him.

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#8 24 miles east 10 miles north ? 26 miles

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#23 24-foot ladder How high? 8 feet from the wall 22.6 feet

#25 How much longer? 11.7 – 10.2 = 1.5 inches Sides of 4 and 11. The third side is a leg. This means the hypotenuse is 11. Sides of 4 and 11. The third side is the hypotenuse. How much longer? 11.7 – 10.2 = 1.5 inches