3.01 Do Now - Intro to Trig

Solve for c using the pythagorean theorem below. A and B are given.

a² + b² = c²

^{a = 9 b = 40}

• c = 41

• c = 65

• c = 25

• c = 5

Level 2

Solve for the value of y

• 13

• 5

• 23

• 10

The Pythagorean Theorem ONLY works on which triangle?

• obtuse

• scalene

• isosceles

• right

What side(s) will always be the longest on a right triangle?

• The Hypotenuse

• Leg A

• Leg B

• The Right Angle

What is the relationship between the sides in the Pythagorean Theorem shown?

Hint: Think about when the hypotenuse is missing!

• a + b = c

• a² + b² = c²

• a² – b² = c²

• a – b = c

Which sides are the legs of the triangle?

• 9 and 15

• 9 and 12

• 12 and 15

• 15

Which side is the hypotenuse?

• 9

• x

• 14

Which equation can be used to solve for "x"?

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

Determine the length of the missing side.

• 7

• 8

• 17

• 23

What does the Pythagorean Theorem help us find?