A painting 40cm long and 28cm wide is painted on a cardboard such that there is a margin of 2cm along each of its sides. find the total area of the margin
Answers
Step-by-step explanation:
Total length of the painting including the margin = 40 cm
Total width of the painting including the margin = 28 cm
Area of the painting including the margin = 40*28
Area of the painting including the margin = 1120 sq cm
Length of the painting without the margin = 40 - (2 + 2)
= 40 - 4
= 36 cm
Width of the painting without the margin = 28 - (2 + 2)
= 28 - 4
= 24 cm
Area of the painting without the margin = 36*24
Area of the painting without the margin = 864 sq cm
Area of the margin = Area of the painting including the margin - Area of the painting without the margin
⇒ 1120 - 864
= 256 sq cm
So, the total area of the margin is 256 sq cm
Answer:
Total length of the painting including the margin = 40 cm
Total width of the painting including the margin = 28 cm
Area of the painting including the margin = 40*28
Area of the painting including the margin = 1120 sq cm
Length of the painting without the margin = 40 - (2 + 2)
= 40 - 4
= 36 cmWidth of the painting without the margin = 28 - (2 + 2)
= 28 - 4
= 24 cm
Area of the painting without the margin = 36*24
Area of the painting without the margin = 864 sq cm
Area of the margin = Area of the painting including the margin - Area of the painting without the margin1120 - 864
= 256 sq cm
So, the total area of the margin is 256 sq cm