Step-by-step explanation:
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(8-4x+2y)-(20+4x-4y)
-12-8x+6y or -8x+6y-12
Square, Rectangle and Rhombus
Answer:
10 edges
Step-by-step explanation:
we know that
The Euler's formula state that: In a polyhedron, the number of vertices, minus the number of edges, plus the number of faces, is equal to two
in this problem we have
substitute the given values
solve for E
Combine like terms in the left side
subtract 12 both sides
Multiply by -1 both sides