Geometry Section 9.1 Tangent Day 2

Geometry Section 9.1 Tangent

Day 2
Finding and using the Tangent ratio.


How do we use the tangent ratio to find missing lengths and missing angles in triangles?

Multiple Choice

Find $$\frac{AC}{AB}$$ = ?

• $$\frac{4}{3}$$  
  

• $$\frac{3}{4}$$  
  

• $$\frac{3}{5}$$

• $$\frac{4}{5}$$

Multiple Choice

Find $$\frac{BC}{AB}$$ = ?

• $$\frac{4}{3}$$  
  

• $$\frac{3}{4}$$  
  

• $$\frac{3}{5}$$

• $$\frac{4}{5}$$

Multiple Choice

Find $$\frac{BC}{AC}$$ = ?

• $$\frac{4}{3}$$  
  

• $$\frac{3}{4}$$  
  

• $$\frac{3}{5}$$

• $$\frac{4}{5}$$

You know this . . .

You just finished a quiz on this.

Talk it over with a neighbor

Find AB and BC

Fill in the Blanks

Multiple Choice

Find $$BC$$ = ?

• $$\sqrt{3}$$  
  

• $$\frac{\sqrt{3}}{3}$$  
  

• $$6\sqrt{3}$$

• $$12\sqrt{3}$$

• $$2\sqrt{3}$$

Multiple Choice

Find $$\frac{AC}{AB}$$ = ?

• $$\sqrt{3}$$  
  

• $$\frac{\sqrt{3}}{3}$$  
  

• $$\frac{1}{2}$$

• $$\frac{2}{1}$$

Multiple Choice

Find $$\frac{BC}{AC}$$ = ?

• $$\sqrt{3}$$  
  

• $$\frac{\sqrt{3}}{3}$$  
  

• $$\frac{1}{2}$$

• $$\frac{2}{1}$$

Multiple Choice

What is Tan B = ?

• $$\frac{5}{13}$$

• $$\frac{5}{12}$$

• $$\frac{12}{5}$$

• $$\frac{12}{13}$$

Multiple Choice

What is Tan A = ?

• $$\frac{5}{13}$$

• $$\frac{5}{12}$$

• $$\frac{12}{5}$$

• $$\frac{12}{13}$$

Using the tangent ratio to find a missing side.

Using the tangent ratio to find a missing angle.

Multiple Choice

Find the value of x to the nearest degree.

• 29

• 61

• 30

• 28

Multiple Choice

Find the value of x to the nearest unit.

• 282

• 2381

• 54

• 124

What to do when x is on the bottom

Multiple Choice

$$Solve:\ \ \ \ Tan\ 19\degree\ =\frac{48}{x}$$

• x = 16.5

• x = 17.1

• x = 139.4

• x = 0.55

• x = 4175.4

Multiple Choice

$$Solve:\ \ Tan\ x\degree\ =\ \frac{32}{100}$$

• $$17.7\degree$$

• $$0.056\degree$$

• $$72.3\degree$$

• $$18.7\degree$$

Homework Section 9.1 Day 2

• Formative 9.1

• # 1 - 15 All