The area of a triangle is area=1/2•base•height or a= b•h / 2
196 I think hope this helps
0.4 is four tenths. 0.4 = 4/10=2/5
-13/24 because u have to multiply to get the same denominator which would end up being -15/24 and 2/24 add that to get -13/24
There are 7 faces, 12 edges and 24 vertices in a hexagonal pyramid.
