Solving by Trig Ratios

What is the correct ratio?

• sin 40 = w/28

• cos 40 = w/28

• tan 40 = w/28

• sin 40 = 28/w

Tags

CCSS.HSG.SRT.C.6

How do you know when you will have to divide after setting up your trig function when solving for a missing side length using trig?

• when the variable is in the denominator

• when the variable is in the numerator

• every time

• never

Tags

CCSS.HSG.SRT.C.8

Set up the problem.

• sin(47) = x/28

• cos(47) = x/28

• tan(47) = x/28

• cos(47) = 28/x

Tags

CCSS.HSG.SRT.C.6

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Tags

CCSS.HSG.SRT.C.6

sin J = ​ (a)  

cos J = ​ (b)  

tan J = ​ (c)  

•  

•  

•  

Tags

CCSS.MATH.CONTENT.HSG.SRT.C.8

sin A = ​​ (a)   ​

cos A = ​​ (b)  

tan A = ​ (c)  

Tags

CCSS.MATH.CONTENT.HSG.SRT.C.8

sin X = ​ (a)  

cos X = ​ (b)  

tan X = ​ (c)  

Tags

CCSS.MATH.CONTENT.HSG.SRT.C.8

What is the ratio for Tangent?

Tags

CCSS.HSG.SRT.C.6

Find value x of by writing a trig equation & solving for x.

Round to the nearest hundredth or the 2nd decimal place.

Write number only, NOT x = #,

Tags

CCSS.HSG.SRT.C.8

Use the proper Trig function to find the value of the hypotenuse. Round to nearest tenth.

• 59.0

• 6.43

• 92.7

• 24.8

• 26.5

Tags

CCSS.HSG.SRT.C.8