What 1/8 of ?= 4.
Give me the answer fast pls

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

Determine the area of a triangle with (see picture below)

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)