Finding Missing Sides and Angles in Right Triangle Trigonometry

What are the techniques that you need to find the missing side?

• Trigonometry Ratios and Sine Rule

• Trigonometry Ratios and Cosine Rule

• Pythagoras and Sine Rule

• Pythagoras and Cosine Rule

Choose the appropriate technique to solve this problem

• Pythagoras Theorem

• Trigonometry Ratio

• Sine Rule

• Cosine Rule

Choose the correct technique to find the missing side of this triangle

• Pythagoras Theorem

• Trigonometry Ratio

• Sine Rule

• Cosine Rule

Use the Trig Toolkit to find the value of x in the given diagram. Click and drag your answer into the blank space below.

The value of x is (a)   .

• 21

• 33

• 12

The correct ratio to solve for "x" is (a)  

• sin 28 = x/14

• cos 28 = x/14

• tan 28 = x/14

• tan 28 = 14/x

Find x round to the nearest tenth.

Mathematical Equivalence

ON

Solve the right triangle.

• <B = 39^o, AB = 11.58, AC = 7.29

• <B = 39^o, AB = 7.29, AC = 11.58

• <B = 129^o, AB = 11.58, AC = 7.29

• <B = 129^o, AB = 7.29, AC = 11.58

Solve the right triangle.

• o, AB = 11.58, AC = 7.29

• o, AB = 7.29, AC = 11.58

• o, AB = 11.58, AC = 7.29

• o, AB = 7.29, AC = 11.58

What is the value of y?

Mathematical Equivalence

ON

Solve the following triangle

• A

• B

• C

• D