Answer:
8 Faces
Step-by-step explanation:
The Euler’s formula is:
V-E+F=2
Where V is number of vertices, E is number of edges and F is number of faces.
In our example, E=20, V=30, so we have:
30-20+F=2
10-F=2
F=8
...number its multiplied by itself
ex. 2^3 = 2x2x2 = 8
16.26°
1. tanΘ= 7/24
2.Θ
3. Θ = 16.26°
79
10 times 3 is thirty. Then add 30 + 49