area of the strip 5. Find the area of the crossroads at right angles to each other through the centre of the field. 19.6 m 2m
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Answer:
Let ABCD denotes the rectangular sheet.
Length of sheet = 30 cm
Breadth of sheet = 20 cm
:. Area of sheet = Length x Breadth
= (30 × 20) cm2
= 600 cm2
4 cm wide strip is cut from rectangular sheet all around, then we obtain a rectangular sheet PQRS, having
Length = (30- (4 + 4)) cm = 22 cm
Breadth = (20 - (4 + 4)) cm = = 12 cm
:: Area of remaining sheet PQRS = (22 x 12) cm2 = 264 cm2
:: Area of strip cutout = Area of sheet ABCD - Area of sheet PQRS
= (600 - 264) cm2
= 336 cm2
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