Question

What will be the width of the following circular race track with inner diameter . 10 cm and outer diameter 14 cm.?

Answer 1

Inner Diameter=10 cm

Inner Radius=10/2=5cm

Outer Diameter=14 cm

Outer Radius=14/2=7cm

Width=Outer Radius-Inner Radius

=7-5

=2 cm

Width of Circular Track=2 cm

Answer 2

Given inner diameter = 10 cm

then inner radius = 5 cm

and outer diameter = 14 cm

then outer radius = 7 cm

then , width of th track = outer radius - inner radius

= 7 -5 cm

= 2 cm