Question

Pragya wrapped a cord around a circular pipe of radius 4 cm (adjoining figure) and
cut off the length required of the cord. Then she wrapped it around a square box of
side 4 cm (also shown). Did she have any cord left? (n = 3.14)​

Answer 1

Answer:

25.12cm

Step-by-step explanation:

2×3.14×4

2×314/100×4

628/100×4

2512/100

25.12cm

Answer 2

Answer:

Hello Mates

Step-by-step explanation:

Circumference of circle -

Circumference = 2πr

= 2*3.14*4

Circumference = 25.12 cm

Perimeter of square -

Perimeter = 4*Side

= 4*4

Perimeter = 16cm

Cord Left -

Cord Left = Perimeter of square - Circumference of circle

=25.12-16

Cord Left = 9.12 cm

Yes, there is 9.12cm cord left.

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