Label Sides Trigonometry

What is the first step when using trigonometry?

• Work out which ratio to use.

• Enter values into the calculator.

• Label the sides.

• Panic and skip to the next question.

Find side AB?

• 20 m

• 5 m

• 11.54 m

• 8.66 m

Find the measurement of the missing side indicated

• 4.39

• 3.21

• 2.19

• 2.05

Which trig ratio would you use for the following?

• Sin

• Cos

• Tan

• You would not be able to use trigonometry

Find tan(θ).

• tan(θ) = 5/13

• tan(θ) = 12/13

• tan(θ) = 12/5

• tan(θ) = 5/12

What would you use to solve for a?

• sin

• cos

• tan

• Pythagorean theorem

Which trig ratio would you use for the following?

• Sin

• Cos

• Tan

• You would not be able to use trigonometry

Where would you label 'h'?

• Opposite the given angle.

• Opposite the right angle.

• The unknown side.

• The side that has a length already given.

Where would you label 'o'?

• Opposite the given angle.

• Opposite the right angle.

• The unknown side.

• The side that has a length already given.

Find the length of side w.

• 21.4 cm

• 18.0 cm

• 36.5 cm

• 43.6 cm