Trigonometry (Basic)

The ratio in a right triangle of adjacent to hypotenuse is _____

• sine
• cosine
• tangent
• inverse cosine

 Find side AB?

• 20 m
• 5 m
• 11.54 m
• 8.66 m

Choose the correct ratio.

• A
• B
• C
• D

Find the length of side w.

• 21.4 cm
• 18.0 cm
• 36.5 cm
• 43.6 cm

Solve for x.

• 24.20
• 4.92
• 290.4
• 29.75

Which trigonometric ratio you should use to find the height(h)?

• $\sin\ 60\degree=\frac{h}{1000}$

• $\cos\ 60\degree=\frac{h}{1000}$

• $\cos\ 60\degree=\frac{1000}{h}$

• $\tan\ 60\degree=\frac{h}{1000}$

Find the height(h)?

• 2000

• 50

• 500

• 1732.05

What is sin 45°?

• 1

• $\frac{1}{2}\sqrt{3}$

• $\frac{1}{2}$

• $\frac{1}{2}\sqrt{2}$

cot(45^o)

• $\frac{1}{2}$

• 1

• -1

• $\sqrt{2}$

1 - sin²x = _________?

• -cos²x

• sec²x

• cosx

• cos²x