Step-by-step explanation: TS 5 15 8 36
L = W + 10 cm
Perimeter = 2(L + W)
Perimeter = 70 = 2(W +10 +W)
70/2 = 2(W +10 +W) / 2
35 = (W +10 +W)
35 = 2W +10
35 - 10 = 2W +10 - 10
25 = 2W
25/2 = 2W/2
25/2 cm = W W = ?? cm
L = W + 10 cm
L = 25/2 + 10 cm L = ?? cm
