a picture is painted on a cardboard 8 cm long and 5 cm wide such that there is a margin of 1.5 CM along each of its side find the total area of the margin
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Oooooo ncert,
Length of painting=8cm
Breadth=5cm
Area of the painting=
=l×b
=8×5
=40cm²
Length of whole cardboard=8cm+1.5cm+1.5cm=11cm
Breadth of whole cardboard=5cm+1.5cm+1.5cm=8cm
Area of the whole cardboard=
=l×b
=11×8
=88cm²
Now, area of the margin =
Area of the whole cardboard- Area if the painting
=88-40
=48cm²
1 picture= Figure for easiness
2 picture= length and breadth of whole cardboard found after calculations
Length of painting=8cm
Breadth=5cm
Area of the painting=
=l×b
=8×5
=40cm²
Length of whole cardboard=8cm+1.5cm+1.5cm=11cm
Breadth of whole cardboard=5cm+1.5cm+1.5cm=8cm
Area of the whole cardboard=
=l×b
=11×8
=88cm²
Now, area of the margin =
Area of the whole cardboard- Area if the painting
=88-40
=48cm²
1 picture= Figure for easiness
2 picture= length and breadth of whole cardboard found after calculations
Attachments:
navreet3:
Thanks
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