Math Quiz_Trignometry_Grade 8

Find the value of a.

• 13.35

• 12.91

• 13.05

• 12.83

What rule should you use?

• Sine
• Cosine

Find the value of x:

• 6.99

• 6.33

• 13.59

• 7.83

Which of the following formulas is the Cosine rule?

• c² = a² + b² - 4ac + cosA
• c² = a² - b² - 2abcosC
• c² = a² + b² - 2abcosC
• (cos A)/a = (cos B)/b

We can use SOH-CAH-TOA for...

• Any triangle ever
• Non-right triangles only
• Right Triangles only
• Never

Find the length of BD.

Hint: Use SOH-CAH-TOA

• 35.2

• 24

• 75.5

• 51.5

 FInd tanX

• 32/40
• 40/24
• 32/24
• 24/32

Find the measure of the missing angle.

• 49^o
• 50^o
• 41^o
• 33^o

Find x round to the nearest tenth.

• 46.1

• 4.9

• 16.4

• 26.9

What is the cosine of angle P?

• p/q
• q/r
• p/r
• r/q