Question

I have a square piece of paper ( paper A), which is 10cm in length and width. I fold it in half to make paper B and fold it in half again to make Paper C.
What are the perimeters of paper B and C

Answer 1

Answer

Condition 1st ( Paper A )

Square piece is of side 10cm

Hence perimeter will be :

⇰ 4 (side)

⇰ 4(10)

⇰ 40cm

Condition 2nd ( Paper B )

Square piece is folded into half.

Hence one side will remain 10cm and the other will be half of 10 cm . i.e 5 cm

Hence the new paper piece is rectangular in shape.

Hence perimeter will be :

⇰ 2(length + breadth )

⇰ 2(10 + 5 )

⇰ 2(15)

⇰ 30cm

Condition 3rd (Paper C )

Rectangular paper piece is again halfed

a) Hence one side will remain 5cm and other will get halfed of 10 i.e 5cm

Perimeter of new square with side 5cm will be :

⇰ 4(side)

⇰ 4(5)

⇰ 20cm

Hence perimeter of Paper B will be 30cm.

Perimeter of Paper C will be 20cm