Finding a Missing Side or Angle in a Right Triangle

What is the value of y?

• 3√2

• 4√3

• 6

• 1

Choose the appropriate technique to solve this problem

• Pythagoras Theorem

• Trigonometry Ratio

• Sine Rule

• Cosine Rule

What is the Pythagorean theorem?

• In a right triangle, a + b = c.

• In any triangle, a² + b² = c².

• In a right triangle, a² + b² = c².

• In a right triangle, a² - b² = c².

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

• Pythagoras Theorem

• Trigonometry Ratio

• Sine Rule

• Cosine Rule

Based on the math work in the picture, what problem has been solved?

• Finding a side using sine rule

• Finding an angle using sine rule

• Finding a side using cosine rule

• Finding an angle using cosine rule

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

What is the sine ratio in a right triangle?

• sine = adjacent / hypotenuse

• sine = opposite / adjacent

• sine = hypotenuse / adjacent

• sine = opposite / hypotenuse

Choose the correct technique to find the missing angle (theta = θ)

• Pythagoras Theorem

• Trigonometry Ratio

• Sine Rule

• Cosine Rule

How do you solve the for the missing leg of a right triangle when you have only the right angle and 2 of the sides?

• You use the sin trig ratio.

• You use the cos trig ratio.

• You use the tan trig ratio.

• You use Pythagorean theorem.

To find the missing side of a right triangle given 2 legs, you will...

• Use Pythagorean theorem

• Plug in the 2 legs for a and b

• Square everything

• Add

• Take the square root