Question

A wire forming a rectangle of dimensions
9 cm and 6.4 cm, is stretched and bent
again to form a circle. What would the
diameter of the circle be?​

Answer 1

Answer:

9.8cm

Step-by-step explanation:

perimeter of rectangle is 9+6.4+9+6.4=30.8

perimeter of circle = 2πr = 2×22/7×r

30.8/2×7/22 = r

r = 4.9

D= 4.9×2 = 9.8 cm