Did this a couple years ago, im kinda lost xD . sorry
8920000000.
Since the problem is asking for a positive 10^9 power, the final number with be greater than 8.92
Hi
I belive you add the top side (4) plus the bottom side (9.5) witch would equal 13.5 times the hieght (3) equals 40.5 divided by 2 equals 20.25. the area is 20.25ft squared
another way to do it
4+9.5= 13.5
13.5×3= 40.5
40.5÷2= 20.25ft
