Answer:
111.6ft^2 for the two stacks
Step-by-step explanation:
0.75inch × 11 = 8.25 inches
8.25 inches = 0.69ft
Here dimensions are 3 ft. Wide, and 7 ft. Long and height of stack = 0.69ft
Surface area of one stack =
2*(LW+WH+LH)
= 2*(7*3 +3*0.69+7*0.69)
= 55.8 ft^2
Multiply by 2 to to get surface area of 2 stacks separately
55.8 × 2 = 111.6ft^2
Answer:The approximate surface area of two stacks is 111.5 square ft.
Step-by-step explanation:
We were Given : One piece of leftover plywood is 0.75 in. thick, 3 ft. wide, and 7 ft. long.
We are to Estimate the approximate surface area of two stacks of 11-piece leftover plywood ?
Solution :
length =7 ft.
The width = 3 ft.
The height = 0.75 in.
We have 11-piece leftover plywood.
i.e. 0.75*11=8.25in
Convert inches into ft,
1 inch = 1/12ft
8.25 inch =8.25/12 =0.6875 ft
The surface area formula is
SA=2(lw+wh+lh)
Substitute the values above:
SA=2(7×3+3×0.6875+7×0.6875)
SA=2(21+2.065+4.8125)
SA=2(27.875)
SA=55.75
Recall:The surface area of two stacks = 55.75×2=111.5
Therefore, the approximate surface area of two stacks is 111.5 square ft.
