# The base of a triangular pyramid is a triangle with corners at #(3 ,4 )#, #(2 ,9 )#, and #(5 ,7 )#. If the pyramid has a height of #7 #, what is the pyramid's volume?

##### 1 Answer

Aug 6, 2016

#### Explanation:

Given

and deffining

The area spanned by two vectors

The pyramid volume is given by