Question 12 Marks
Write the number of faces, vertices and edges in each of the following solids and verify Euler's relation for the same :
(i) Octagonal pyramid
(ii) Decagonal prism
(i) Octagonal pyramid
(ii) Decagonal prism
Answer
View full question & answer→(i) faces - 9,$\quad$vertices - 9,$\quad$edges - 16
(ii) faces - 12,$\quad$vertices - 20,$\quad$edges - 30
(ii) faces - 12,$\quad$vertices - 20,$\quad$edges - 30