Pythagorean Theorem and Tan Trig Ratio

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

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

solve for c

• 7

• 9

• 4

• 13

The bottom of a ladder leaning against a wall is 1.5 m from the bottom of the wall. The ladder is 5.5 m long. Find how high the top of the ladder is above the ground, correct to one decimal place.

• 5.2 m

• 5.3 m

• 5.7 m

• 5.8 m

What kind of triangles does the Pythagorean Theorem work with?

• Right

• Left

• Isosceles

• Equilateral

What is the side from point A to point B called? 

• Opposite

• Adjacent

• Hypotenuse

What is the formula used to solve for the hypotenuse?

• a²+b²=c²

• a+b=c

• a²-b²=c²

• c-a=c

To get from point A to point B you must avoid walking through a pond.  To avoid the pond, you must walk 34 meters south and 41 meters east.  To the nearest meter, how many meters would be saved if it were possible to walk through the pond? 

• 35

• 22

• 58

• 75

What is the correct equation to solve for x ?

• tan( 46 ) = 17/x

• sin ( 46 ) = x/17

• tan (46 ) = x/17

• cos (46) = x/17

If you add side a and b together... does it equal c?

• No Way

• Yes

• Maybe

If you are given the two sides that are not the hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent