Intro to trig

The side marked x is ​ (a)   to the angle that is 56 degrees. The side marked 20 is the ​ (b)   of the right triangle since it is across from the right angle. If we set up the ratio ​ x/20, we would be finding ​ (c)   56.

• opposite
• hypotenuse
• sin
• cos
• tan
• adjacent

Tags

CCSS.HSG.SRT.C.6

Label each part of the triangle.

a

b

c

Hypotenuse

side opposite to 30 degree angle

side adjacent to 30 degree angle

Tags

CCSS.HSG.SRT.C.6

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8

Tags

CCSS.8.G.B.8

Match the following terms to the correct relationship or definition about a right triangle.

• ratio of

  adjacent leg / hypotenuse

• hypotenuse

• the two sides of a right triangle that are NOT the hypotenuse

• sin

• ratio of opposite leg / adjacent leg

• leg

• the side opposite the right angle

• tan

• ratio of

  opposite leg / hypotenuse

• cos

Tags

CCSS.HSG.SRT.C.6

• cosine
• sine
• tangent

Tags

CCSS.HSG.SRT.C.6

Match the following function to their corresponding trig ratio.

Tags

CCSS.HSG.SRT.C.7

Which trig function would you use to solve for x?

Tags

CCSS.HSG.SRT.C.6

The popular acronym used to remember the trigonometric ratios

• SOH

  COA

  TAH

• SOH

  CAH

  TOA

• SAH

  COH

  TOA

• SOH

  CAH

  TAO

Tags

CCSS.HSG.SRT.C.6

Choose the correct set up to find the height of the tree.

Tags

CCSS.HSG.SRT.C.8

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

• sine
• cosine
• tangent
• cotangent

Tags

CCSS.HSG.SRT.C.6