Solid 3Dhard
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A polyhedron has 20 triangular faces and 12 vertices. By Euler's formula , how many edges does it have?
A polyhedron has 20 triangular faces and 12 vertices. By Euler's formula , how many edges does it have?
A polyhedron has 20 triangular faces and 12 vertices. By Euler's formula , how many edges does it have?