The base of a triangular pyramid is a triangle with corners at (2 ,1 ), (5 ,2 ), and (8 ,7 ). If the pyramid has a height of 18 , what is the pyramid's volume?
1 Answer
Nov 17, 2017
Explanation:
Volume of a triangular pyramid is:
Where
Dimensions of triangle:
Let the angles be at:
Using the distance formula:
Length
Finding
Area of triangle from diagram:
Area of pyramid: