Answer:
a) 72 cm²
b) 72 cm²
c) 8 cm²
Step-by-step explanation:
Given : A piece of sheet metal is cut and bent to form a box, as shown. The box has no top.
Length of box = 18 cm
Breadth of box = 4 cm
Height of box = 2 cm
Area of rectangle = Length × Breadth
a) To find the area of the bottom
Since, base of box has dimension 18 cm and 4 cm
So, area of base = 18 × 4 = 72 cm²
b) To find the area of the two longer sides
longer side is side with length 18 cm and breadth 4 cm
So area of side with longer side = 18 × 4 = 72 cm²
Thus, the area of two longer side is same as area of base = 72 cm²
c)To find the area of the two shorter sides.
shorter side is side with breadth 4 cm and height 2 cm
So area of side with shorter side = 4 × 2 = 8 cm²
Thus, the area of the two shorter sides is 8 cm².
