Question

Draw concentric circle for the following measurements of radii/diameters. Find out the width of the circular ring.

d = 6.2 cm and r = 6.2 cm

Answer 1

d = 6.2 cm and r = 6.2 cm

r = `"d"/2`

∴ r = `6.2/2` = 3.1 cm and r = 6.2 cm

Step 1: Drawn a rough diagram and market the given measurements.

Step 2: Taken any point O and marked it as the center.

Step 3: With O as center, drawn a circle of radius OA = 3.1 cm.

Step 4: With O as center, drawn a circle of radius OB = 6.2 cm.

Thus the concentric circles C₁ and C₂ are drawn.

Width of the circular ring = OB – OA = 6.2 – 3.1 = 3.1 cm.