The formula for the surface area of a triangle pyramid is shown below: SA = A + (3/2)Bh Where SA for surface area, A=base are, b=base and h=height. We can solve for surface are since all values needed are given. SA = (0.07) + (3/2)*1.2*0.75 SA=1.42 square foot Therefore, the surface area is 1.42 square foot.
35,37,39 111 divided by 3 is 37...so that is the middle number. Two below it is 35 and 2 above it is 39 and all three would add up to 111. So 35 is the lowest.
