Trigonometric Ratios and Functions

What is the acronym to help you remember the ratios to use in trigonometry?

• RIGHTANG

• SOHCAHTOA

• SHOCHATOA

• SAHCOHTAO

Tags

CCSS.HSG.SRT.C.6

What is the correct trigonometric ratio for the given right triangle?

Tags

CCSS.HSG.SRT.C.6

Solve for x in the equation . Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 9.7

Tags

CCSS.HSF.TF.B.7

Choose the correct ratio for the given triangle.

Tags

CCSS.HSG.SRT.C.6

Set up the problem to solve for x:

• sin(47) = x/28

• cos(47) = x/28

• tan(47) = x/28

• cos(47) = 28/x

Tags

CCSS.HSG.SRT.C.6

What are the value of x and ( y ) in the given triangle.

In addition what is the area of the triangle.

Look up 45-45-90 triangles rules

• x = 10

  y = 5sq root of 2

  Area = 25

• x = 10

  y = 5sq root of 2

  Area = 50

• x = 20

  y = 5sq root of 2

  Area = 25

• x = 10

  y = 5sq root of 3

  Area = 25

Tags

CCSS.HSG.CO.C.10

What is the value of x and y ?

Look up rules for 30-60-90 Triangle

To go from 60 degree side to 30 degree side divide by sq root of 3,,then mult be 2 to fine the big side.

• x=14

  y = 7

• x= 7

  y = 14

Tags

CCSS.HSG.SRT.C.8

Match the following for finding sides in a 30-60-90 right triangle.

• Double the short leg

• Hypotenuse

• Half of the hypotenuse

• Short Leg

• Short leg times square root of 3

• Long Leg

Tags

CCSS.HSG.SRT.C.8

Match the following for a 30-60-90 right triangle

• Opposite the 30° angle.

• Hypotenuse

• Opposite the right angle.

• Short Leg

• Opposite the 60° angle.

• Long Leg

Tags

CCSS.8.G.B.8

Which set of sides would make a right triangle?

Use: c² < a² + b² acute

c² = a² + b² right

c² > a² + b² obtuse

• 4,5,6
• 8,10,12
• 5,12,13
• 5,10,12

Tags

CCSS.8.G.B.8