Problema Solution
a rectangular cloth is 75.5 cm long and 53.75 cm wide. how much lace is needed to sew around it, allowing 1.5 cm for the overlap?
Answer provided by our tutors
Let
l = 75.5 cm is the length of the rectangular cloth
w = 53.75 cm width of the rectangular cloth
w1 = 1.5 cm the width of the lace needs to be equal to the overlap
l1 = the length of the lace it is equal to the perimeter of the rectangle
l1 = 2*(l + w)
l1 = 2*(75.5 + 53.75)
l1 = 258.5 cm
We need to find the area of the lace. The lace is also rectangular surface so its area is l1 * w1 that is
l1 * w1 = 258.5 * 1.5 = 387.75 cm^2 lace
We need 387.75 cm^2 lace.