Show:
Angles
1 step equations
Symmetry
Equation W.P
Triangles
100

metion one way to measure angles

protractor

100

X-23=8

X-23=8

X-23+23=8+23

X=31

100

What is symmetry


the line of symmetry can be defined as the axis or imaginary line that passes through the center of the shape or object and divides it into identical halves



100

A new one-year membership at Roswell Tennis Center costs $160. A registration fee of $28 is paid
up front, and the rest is paid monthly. How much do new members pay each month?


160 = 28 + 12x





100

A B= 8.5 cm 

A C=35* degrees 

B C= 55* degrees

What is the measurement  from A to c?

7.1 cm

200
What are the 7 types of angles?



The 7 types of angles are: right angles, acute angles, obtuse angles, straight angles, reflex angles, full angles, and complementary angles.



200

r+12=25

r+12-12=25-12

r=13

200

 is this an example of symmetry in real life?

Wings of most butterflies are identical on the left and right sides.

yes 

200

Jasmine's cell phone company charges her $35
an month for phone service plus 0.50 for each
text message. How many text messages does
Jasmine send in a month if her bill was $52?



35 + 0.5x = 52





200

L M = 9.2cm

L N = 55* degrees 

M N = 40* degrees 

What is the measurement from M to N?

6.6 cm

300

which angle is more than 90 degrees?

obtuse

300

2p=14

2p/2= 14/2


P=14



300

How many lines of symmetry does a rectangle have? 

2 Lines

300

Caroline's Coffee Shop sells a refill mug for
$8.95. Each refill costs $1.50. Last month Sean
spent $26.95 on a mug and refills. How many
refills did he buy?


26.95 = 8.95 + 1.5x





300

H I = 4.5cm

H J = 6 cm

H j =30* degrees

What measurement is from J A?

3.2 cm

400
What is the sum of all 3 angles in a triangle?



The sum of the three angles of any triangle is equal to 180 degrees.






400
X-3=9


X-3+3=9+3

X=12

400

How many lines of symmetry does a parallelogram has?


0 lines


400

Elkins Pointe basketball team purchased
equipment and uniforms for a total cost of
$912. The equipment cost 612 and the
uniforms were $25 each. How many uniforms
did the school purchase?

912 = 612 + 25x

400

D E= 5.7

E F=105* degrees

D F = 35* degrees

What is the measurement  from E F?

3.4cm

500
Are right angles 90 degrees?




Right angles measure 90 degrees. Obtuse angles measure more than 90 degrees.



500

9k=-27

9k/9=-27/9

k=-3

500

How many lines of symmetry does an isosceles triangle have?

1 line

500

Renting boats on a lake costs $22 per hour
plus a flat fee of $10 for insurance. If you paid
$98 to rent the boat, how many hours did you
rent the boat?

10 + 22x = 98