It’s 29 because if you substitute the m by 5 it would be 5*7 so that’s 35 and then 35-6=29
Answer:
2826 inches^2
Step-by-step explanation:
The general formula for the total surface area of a regular pyramid is
T.S.A.=12pl+B
Where p represents the perimeter of the base, l the slant height and B the area of the base.
The perimeter of the base is.
p=2L+2W
P=2*10+2*9
P=20+18
P= 38 inches
The area of the base is.
B=10*9
B=90in^2
T.S.A.=12(38)(6)+90
T.S.A=2736+90
T.S.A=2826 inches^2
Hence the paper needed is 2826 inches^2
Answer:
9=48
Step-by-step explanation:
shown above in the photo hope it helps
Answer:
Tricky question, but it would be a better deal if he wants extra ribbon, then he could but the 180 inch and get more for only $3.99. But if he wants to have the exact 8 feet ribbon, it would only be $3.12.
Step-by-step explanation:
