Trig Refresh Video Quiz

What is the sine of an angle in a right-angled triangle equal to?

• Adjacent over Hypotenuse

• Opposite over Adjacent

• Hypotenuse over Opposite

• Opposite over Hypotenuse

Which trigonometric ratio is equal to the adjacent over the hypotenuse?

• Sine

• Cosine

• Tangent

• Cotangent

What is the tangent of an angle in a right-angled triangle equal to?

• Hypotenuse over Adjacent

• Opposite over Hypotenuse

• Adjacent over Opposite

• Opposite over Adjacent

If the angle of a right-angled triangle is 43 degrees and the hypotenuse is 12, what is the length of the opposite side?

• 7.8

• 10.2

• 9.5

• 8.18

How do you find the angle in a right-angled triangle if you know the opposite side is 3 and the hypotenuse is 5?

• Use sine with opposite over hypotenuse

• Use cosine with adjacent over hypotenuse

• Use cosine with hypotenuse over opposite

• Use tangent with opposite over adjacent

What is the correct way to solve for an angle using the tangent ratio?

• tan(theta) = opposite over adjacent

• tan(theta) = adjacent over opposite

• tan(theta) = adjacent over hypotenuse

• tan(theta) = hypotenuse over opposite

If you are given the adjacent side and the angle of a right-angled triangle, which trigonometric ratio would you use to find the hypotenuse?

• Secant

• Tangent

• Cosine

• Sine

What is the mnemonic used to remember the trigonometric ratios?

• SOHCAHTOA

• TOHSAHCO

• AHCTOSOH

• COHSATOH

If the opposite side of a right-angled triangle is 155 and the adjacent side is 70, what is the angle?

• 58 degrees

• 45 degrees

• 66 degrees

• 73 degrees

What is the length of the guy ropes if they are anchored 8 meters from the base of the flagpole and attached 9 meters up the flagpole?

• 12 meters

• 16 meters

• 10 meters

• 14 meters