lenght of a drawing baord is 40 cm and breath is 3cm . A4 cm wide border is left along all the four sides and the picture is drawn inside it. Find the area of the border.
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Length of board = 40cm
Breadth of board = 3cm
Area of drawing board = l x b
= 40 x 3 = 120 sq. cm
Length of side of border = 4cm
Area inside the border = side x side
= 4 x 4 = 16 sq. cm (as it is a square)
Area of border = area of board - area inside of border = 120 - 16 = 104 sq. cm
Hope this helps you! :)
Breadth of board = 3cm
Area of drawing board = l x b
= 40 x 3 = 120 sq. cm
Length of side of border = 4cm
Area inside the border = side x side
= 4 x 4 = 16 sq. cm (as it is a square)
Area of border = area of board - area inside of border = 120 - 16 = 104 sq. cm
Hope this helps you! :)
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