A solid has 15 vertices and 20 edges. How many faces does it have?
Answer & explanation
Correct answer: option 3
According to Euler's formula
V + F - E = 2
⇒ 15 + F - 20 = 2
⇒ F - 5= 2
⇒ F =7
A solid has 15 vertices and 20 edges. How many faces does it have?
Correct answer: option 3
According to Euler's formula
V + F - E = 2
⇒ 15 + F - 20 = 2
⇒ F - 5= 2
⇒ F =7