Question

A sheet of paper measure 30 cm by 20 cm.A strip 4 cm wide is cut from it all around.Find the area of the remaining sheet and also the area of the strip cut out​

Answer 1

Answer:

25/50

Step-by-step explanation:

= a×b×c/100

a =30

b = 20

c = 4

=30+20+4/100

= 54/100

= 27 /50

Answer 2

Answer:

1. 264 sqcm
2. 436 sq cm

Step-by-step explanation:

1. Find out the area of rectangle
2. 30×20=600 sqcm
3. 4cm +4cm=8cm
4. 30cm - 8cm = 22cm
5. 20cm - 8cm = 12cm
6. area of rectangle after cutting the strip
7. 22cm×12cm = 264sqcm
8. area of strip =600 sqcm - 264 sqcm
9. Answer = 436 sqcm