Question

3. Solve the following question.
In which of the following shapes will Euler's formula not apply? Give reasons.
Fig. 2
Fig. 3​

Answer 1

Answer:

Euler's formula for solids ⇒ Faces+ Vertices− Edges =2

The given solid in the image is a Cuboid

∴ Faces of the cuboid =6

Vertices=8

Edges =12

putting these values in Euler's formula ⇒6+8−12=2

Hence, Verified.