A = 14*21 + 20*7 + 6*(20-8-66) + 4*21
A = 294 + 140 + 36 + 84
A = 554 ft².
Hope this helps !
Photon
Answer:
first one is correct
Step-by-step explanation:
length of a rectangle = 2b - 8c
breadth of a rectangle = 10b + 6c
now , formula to calculate the perimeter of rectangle is
p = 2 (l + w)
no substitute the value of l(length) and w(width)
p = 2{(2b - 8c) + (10b + 6c)}
p = 2(2b - 8c + 10b + 6c)
p = 2(12b - 2c)
p = 24b - 4c
Answer:
math
Step-by-step explanation:
Answer:

Step-by-step explanation:




