Introduction to Right Triangle Trigonometry

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

• sine

• cosine

• tangent

• cotangent

If you are given the hypotenuse and an adjacent side, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

Fill in the blank...
SOH ___ TOA

• COH

• CAH

• COA

• CHA

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

Find the length of the missing side x...

• x = 10

• x = 11.3

• x = 12.0

• x = 15.0

Find the length of the missing side x...

• x = 5.5

• x = 5.9

• x = 6.6

• x = 6.8

Find the length of the missing side x...

• x = 2.5

• x = 4.4

• x = 5.3

• x = 7.2

Susan is flying a kite, which gets caught in the top of a tree.  Use the diagram to estimate the height of the tree. 

• 63 ft

• 65 ft

• 74 ft

• 87 ft