The answer is <span>A. 16 edges
For most of the solid shapes, we can use Euler's polyhedron formula:
f + v - e = 2
f - the number of faces
v - the number of vertices
e - the number of edges
We know:
f = 5 + 4 = 9
v = 9
e = ?
So:
</span>f + v - e = 2
9 + 9 - e = 2
18 - e = 2
18 = e + 2
e = 18 - 2
e = 16
Ummmm I don’t really know buttt you could get this app called calculated soup and it will help you
lemme do only California, so you see how's done.
Standard form
solve for y
y-4=x+8
add 4 to both sides
y=x+12
