Application of problem solving strategy
Determine the number of edges, vertices and in the following figure:

Determine the number of edges, vertices and faces in the fig.

The number of edges in the given figure is

Application of problem solving strategies • Find the smallest number by which 1620 must be divided to get a perfect square.

Application on problem solving strategy Given below is a pie chart depicting the reason given by people who had injured their lower back. Study the pie chart and find the number of people who injured their back while either bending and lifting. A total of 600 people were surveyed.

A solid has forty faces and, sixty edges. Find the number of vertices of the solid.