Question

1. use euler’s formula to find the missing number.

faces: 8
vertices: 6
edges: ____
options: 6, 12, 8, 16

Explanation:

Step1: Recall Euler's formula

$V - E + F = 2$

Step2: Substitute known values

$6 - E + 8 = 2$

Step3: Solve for E

$14 - E = 2 \implies E = 14 - 2 = 12$

Answer:

12