SOLUTION: A square cardboard of side 1.2m has a 10 cm wide border round the exterior of three of its sides. Find the area of the border?

SOLUTION: A square cardboard of side 1.2m has a 10 cm wide border round the exterior of three of its sides. Find the area of the border?

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Question 202783: A square cardboard of side 1.2m has a 10 cm wide border round the exterior of three of its sides. Find the area of the border?
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
The area of the square cardboard (1.2X1.2)m. or (120X120)cm. is:
sq.m. or sq.cm
sq.cm.
The area inside of the border is:

sq.cm. Subtract the inside area from the entire area.
sq.cm. This is the area of the border.
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