SA 1.3 Angle Relationships

SA 1.3 Angle Relationships

Review of vocabulary and angle relationships!

Types of angles

• Acute

• Right

• Obtuse

• Straight

Multiple Choice

Classify this angle.

• Acute Angle

• Right Angle

• Obtuse Angle

• Straight Angle

Multiple Choice

Classify this angle.

• Straight Angle

• Right Angle

• Acute Angle

• Obtuse Angle

Multiple Choice

Identify this pair of angles.

• Supplementary Angles

• Complementary Angles

• Neither supplementary nor complementary.

Multiple Choice

Identify this pair of angles.

• Complementary Angles

• Supplementary Angles

• Neither Complementary nor Supplementary Angles

Multiple Choice

Identify this pair of angles.

• Supplementary Angles

• Complementary Angles

• Neither Supplementary nor Complementary Angles

SA 1.3 Pg. 16 #11

Look at this problem. What is the relationship between the angles? Are they complementary or supplementary angles?

Multiple Choice

What equation would you write to solve for x?

• $70=4+2x$

• $70+\left(4+2x\right)\ =\ 90$

• $70\ +\ \left(4+2x\right)=180$

SA 1.3 Pg. 16 #12

What is the relationship of this pair of angles?

Multiple Choice

What equation would you write to solve for x?

• $x+x=90$

• $x=x$

• $x+x=180$

SA 1.3 Pg. 16 # 14

What is the relationship between this pair of angles?

Multiple Choice

What equation would you write for this pair of angles?

• $2x=x$

• $2x+x=180$

• $2x+x=90$

SA 1.3 Pg. 17 # 20

Angle W and angle C are complementary. The $m\angle W=\left(47+3x\right)\degree$ and the  $m\angle C=\left(10+8x\right)\degree$  Find the measure of each angle.

Multiple Choice

 $m\angle W=\left(47+3x\right)\degree\ and\ m\angle C=\left(10+8x\right)\degree$  Angles W and C are complementary. What equation would represent this angle pair?

•  $\left(47+3x\right)+\left(10+8x\right)=90$  

•  $\left(47+3x\right)+\left(10+8x\right)=180$  

•  $\left(47+3x\right)=\left(10+8x\right)$  

SA 1.2 Pg. 11 # 15

What is the relationship between this pair of angles? How do you know?

Multiple Choice

What equation would you write to solve for x?

• $60\ +\left(x+12\right)=90$

• $60\ +\left(x+12\right)=180$

• $60\ =\ \left(x+12\right)$

Open Ended

Why do you think solving equations is one of the most important mathematical skills you can learn?

Now let's go solve those equations!