Page 1 Of Angles Notes Packet

Angle Relationships Review

Match

Match the following

• <A and <B are vertical angles.

• <A and <B are complementary

• <A and <B are supplementary.

• <A and <B are adjacent, and their sum is 122 degrees.

• <A, <B and <C are interior angles of a triangle.

<A = <B

<A + <B = 90

<A + <B = 180

<A + <B = 122

<A + <B + <C = 180

• <A = <B

• <A + <B = 90

• <A + <B = 180

• <A + <B = 122

• <A + <B + <C = 180

COPY THIS DOWN IN YOUR NOTES!

To find x: (8x - 14) + 16 = 90
8x + 2 = 90
-2 -2
8x = 88
/8 /8
x = 11

​Complementary Angles: find the measure of x.

COPY THIS DOWN IN YOUR NOTES

​To find x: (6x + 30) + 36 = 180
6x + 66 = 180
-66 -66
6x = 114
/6 /6
x = 19

​Supplementary Angles: find the measure of x

Fill in the Blanks

Fill in the Blanks

​Vertical Angles: find the measure of x

​COPY THIS DOWN IN YOUR NOTES ​

To find x: 114 = 7x + 23
- 23 - 23
91 = 7x
/7 /7
13 = x

Fill in the Blanks

Fill in the Blanks

​Vertical Angles equal eachother

​This is technically an 8th grade equation because there will be variables on both sides!

​9x + 16 = 12x - 5
-9x -9x
16 = 3x - 5
+5 +5
21 = 3x
/3 /3
7 = x