Question

a solid ball of radius 7cm was melted and then drawn into a wire of diameter 0.2cm . find the lenght of the wire​

Answer 1

Answer:the circumference of the circle will become the length . to find the circumference formula = $2\pi r$. Find the circumference and write it as the length of the wire.

The answer will be 44

Step-by-step explanation:

circumference = $2\pi r$  

                        = 2 ×22/7×7

                        = 44 cm

hence the length of the wire will be 44 cm.