Answer:
hi
Step-by-step explanation:
Answer:
290 in²
Step-by-step explanation:
The surface area of a prism is found using the following formula: SA = 2(lh+lb+bh). This formula takes the area of each face (6 in total( and adds them together to find a total sum. Substitute l = 3, b = 8 and h = 11 to solve for the surface area.
SA = 2(lh+lb+bh)
SA = 2(3*11+3*8+8*11)
SA = 2(33 + 24 + 88)
SA = 2(145)
SA = 290
40 feet by 4 feet
Given length (l) = 100 feet
width (w) = 10 feet
As mentioned in the question the size of garden is decreased to 2/5 of its size. It will effect the length and width with the same proportion.
So,
New length = 100 * 2/5 = 40 feet
New width = 10 * 2/5 = 4 feet
Therefore, the scale of new drawing would be 40 feet by 4 feet