Answer:
P = 37 cm
A = 85 cm^2
Explanation:
l = length, w = width, A = Area, P = Perimeter
l = 10 cm
w = 8.5 cm
A = l * w
P = 2l + 2w
Solve for Area:
A = 10 cm* 8.5 cm ==> substitute l = 10 cm and w = 8.5 cm
A = 10 * 8.5 * cm * cm ==> combine like terms
A = 85 cm^2
Solve for Perimeter:
P = 2(10 cm) + 2(8.5 cm) ==> substitute l = 10 cm and w = 8.5 cm
P = 20 cm + 17 cm ==> simplify
P = 37 cm