Which is the better estimate of the weight of a football helmet

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Corresponding angles are a. always b. sometimes c. never congruent