Adding fractons
8 3/4
How many angle are in a triangle?
3
40x12
480
20/10
2
40/100
0.4
8 1/3 + 8/12
9 0/12
How many angle are in a octagon?
8
66x4
264
40/12
3.3
0.2/12
60
10 5/15 + 2/10
10 8/15
how many sides are in a hexagon?
6
88x55
4840
39/15
2.6
how many sides are in a square
4
19/20 + 12/30
1 7/20
how many sides are in a heptagon?
7
27x86
2322
486/18
27
12/90+45/15
3 2/15
17/60 + 60/3
20 17/60
what shape has 12 sides?
dodecagon
40233x78
3138174
64860/8
8107.5
400,120,780-12,800,680
387320100