Question

please solve the problem in picture Q-3and4

Answer 1

3) Diameter of the wheel = 28 cm
Radius = 28/2 =14cm
Circumference = 2πr = 2 x 22/7 x 14 = 88cm

Total distance = 11km = 1100000cm

number of revolutions = 1100000/88 = 12500

4) Diameter of the equator = 12530 km
Radius = 12530/2 = 6265 km
Circumference = 2πr= 2 x22/7 x 6265
= 39380 km

Answer 2

I hope help you attached answer