Question

the area of adjoining figure is

Answer 1

Answer:

Rolling friction occurs when a wheel, ball, or cylinder rolls freely over a surface, as in ball and roller bearings. The main source of friction in rolling appears to be dissipation of energy involved in deformation of the objects. If a hard ball is rolling

Step-by-step explanation:

Answer 2

Answer:

Area of given figure

Total area =(Area of △ABF)×2+AreaofrectangleBCEF

[Area of △ARF=Area of △CDE]

Total area =(

2

1

×10×6)×2+(10×20).

= 60 + 200

[Totalarea=260cm

2

]