SOHCAHTOA - Finding Missing Sides PART 1

What does the mnemonic SOHCAHTOA help you remember?

• The steps to solve a quadratic equation

• The relationships between sides and angles in a right-angled triangle

• The properties of parallel lines

• The order of operations in algebra

In a right-angled triangle, if you know the hypotenuse and need to find the opposite side, which trigonometric function should you use?

• Sine

• Secant

• Tangent

• Cosine

If the sine of a 30-degree angle is 0.5, and the hypotenuse is 2 km, what is the length of the opposite side?

• 1 km

• 0.5 km

• 2 km

• 1.5 km

When given an angle and the adjacent side, which trigonometric function is used to find the opposite side?

• Cosecant

• Sine

• Cosine

• Tangent

In the example with a 45-degree angle and an adjacent side of 0.5 km, what is the length of the opposite side?

• 0.5 km

• 0.25 km

• 1 km

• 0.75 km