Question

a sheet of paper measures 30cm by20 cm.a strip4 cmwide is cut from it all around. find the area of the remaining sheet and also the aera of the strip cut out.​

Answer 1

Answer:

✌mrk me as brainliest nd thanks me plssss‼️

Step-by-step explanation:

Let ABCD denotes the rectangular sheet.

Length of sheet = 30 cm

Breadth of sheet = 20 cm

∴ Area of sheet = Length × 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 × 12) cm2 = 264 cm2

∴ Area of strip cutout = Area of sheet ABCD – Area of sheet PQRS

= (600 – 264) cm2

= 336 cm2

Hope this helps!

Answer 2

Answer:

30×20 is area of paper

=60sq.cm

4×4

area of strip cut =16sq.cm

area of remaining sheet=area of paper-area of strip=60-16

44sq.cm