Exploring Right Triangle Trigonometry with SohCahToa

What ensures similar triangles have the same side ratios?

• Equal hypotenuses

• Equal angles

• Equal perimeters

• Equal areas

Which side of a right triangle is always opposite the right angle?

• Adjacent side

• Opposite side

• None of the above

• Hypotenuse

How do you determine the opposite side in relation to a given angle in a right triangle?

• It's the side forming the right angle.

• It's the side across from the angle.

• It's the side touching the angle.

• It's the longest side of the triangle.

In the mnemonic SOHCAHTOA, what does 'S' stand for?

• Sine = Adjacent/Hypotenuse

• Sine = Opposite/Adjacent

• Sine = Opposite/Hypotenuse

• Sine = Hypotenuse/Opposite

Which trigonometric function is used for the ratio of the adjacent side over the hypotenuse?

• Sine

• Cotangent

• Cosine

• Tangent

What is the correct expression for the cosine of an angle?

• Adjacent over Opposite

• Opposite over Hypotenuse

• Adjacent over Hypotenuse

• Hypotenuse over Adjacent

For angle A in a right triangle, if side a is adjacent and side b is the hypotenuse, which trig ratio is most appropriate?

• Sine

• Cosine

• Tangent

• Secant

When calculating the tangent of an angle, which sides are involved?

• Adjacent and Hypotenuse

• Opposite and Hypotenuse

• Opposite and Adjacent

• Hypotenuse and Opposite

If the opposite side is 4 and the hypotenuse is 5, what is the sine of the angle?

• 5/3

• 5/4

• 4/5

• 3/5

How do you switch a calculator from radians to degrees for trigonometry calculations?

• Multiply by 180/π

• It automatically detects the unit

• Use the 'RAD' button

• Switch the mode to 'DEG'