Geometry
What is a 4 sided-shape called?
12x11=
132
256÷16=
16
1+2+3...+100=
5050
A reflex angle
8x13=
104
56÷2=
28
5! (1x2x3x4x5)=
120
7 angles
12x90=
1080
41.5÷2=
20.75
Solve for x
90+a=75
128-x=5a
x=203
How many diagonals are there on a dodecagon?
54 diagonals
15x15=
225
25÷0.25=
100
Solve for x
25a÷5=125
52-a=x
x=27