Question

10 equal rings are to be made by a 66cm long silver wire. Find the diameter of each ring

Answer 1

Answer:

10 EQUAL RING = 66 SILVER WIRE

==> 1 RING = 6.6 CM

SO, CIRCUMFERENCE OF A RING = 6.6

==> 2πR = 6.6

==> 2×22/7×R = 6.6

==> R = 66/10×1/2×7/22

==> R =  3/10 × 1/2 × 7

==> R = 21/20

SO, DIAMETER ==> 2R ==> 2(21/20) ==> 42/20 ==> 21/10