Find the surface area of the following triangular pyrarnid using the net. Each triangle is congruent, with a base of 7 ftand a height of 6ft.

B 84 is our answer

Step-by-step explanation:

triangle formula for surface area is base x height divided by 2 so 7 x 6 = 42 42 ÷ 2 = 21 All the other triangles are going to be the same so 21 x 4 = 84 so 84 is our surface area

.19875994384

step-by-step explanation:

1699/ 8548

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.