Sine Cosine Tangent Inverse Find the Side

What is the length of the opposite side?

• 8

• 15

• 17

If you are given the opposite side and hypotenuse, which trig function should you use?

• sine

• cosine

• tangent

• cotangent

Identify the trig ratio that may be used to find the marked unknown side.

Identify the trig ratio that may be used to find the marked unknown side.

Identify the trig ratio that may be used to find the marked unknown side.

Which equation would you use to solve for the unknown angle?

• x = sin^–1(4/5)

• x = cos^–1(4/5)

• x = cos^–1(5/4)

• x = tan^–1(4/5)

Which equation would you use to solve for the unknown angle?

• x = tan^–1(24/7)

• x = tan^–1(7/24)

• x = tan^–1(25/7)

• x = tan^–1(7/25)

Which equation would you use to solve for the unknown angle?

• x = sin^–1(56/70)

• x = sin^–1(70/56)

• x = sin^–1(70/42)

• x = sin^–1(42/70)

The ratio in a right triangle of opposite to adjacent side is _____

• sine

• cosine

• tangent

• inverse cosine

Which equation would you use to solve for the unknown angle?

• x =tan^–1(51/85)

• x = tan^–1(85/51)

• x = tan^–1(51/68)

• x = tan^–1(68/51)