Meena wants to make a toy for her younger brother. The toy is in the shape of a hemisphere surmounted by a cone. If the radius of hemisphere and base radius of cone is 7 cm and height of cone is 3.5 cm. (Take pi = 22/7)

Now answer!

(i) Find the volume of the solid.

(11) Find the cost of painting the whole toy at the rate of Rs.10 per cm².

3 answers

surely you know by now that the volume of the parts are
cone: 1/3 πr^2 h
hemisphere: 2/3 πr^3
and their areas are:
cone: πrs = πr√(r^2+h^2)
hemisphere: 2πr^2

so plug in your numbers.
You could easily have discovered these formulas online. Just sayin'
No idea kud karo
1. Volume of cone + volume of
hemisphere
1/3 πr^2h + 2/3 πr^3
898.3 is the answer