If a solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then the surface area of each ball is `50pi\ c m^2` (b) `60pi\ c m^2` (c) `75pi\ c m^2` (d) `100pi\ c m^2`

If a solid sphere of radius 10cm is moulded into 8 spherical solid balls of equal radius, then the surface area of each ball is 50 pi backslash cm^(2) (b) 60 pi backslash cm^(2)(c)75 pi backslash cm^(2)(d)100 pi backslash cm^(2)

A solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then radius of small spherical balls is ……….. cm.

In Fig. 15.112, the area of the shaded region is (FIGURE) (a) 3pi\ c m^2 (b) 6pi\ c m^2 (c) 9pi\ c m^2 (d) 7pi\ c m^2

In Fig. 15.112, the area of the shaded region is (FIGURE) (a) 3pi\ c m^2 (b) 6pi\ c m^2 (c) 9pi\ c m^2 (d) 7pi\ c m^2

Find the radius of a sphere whose surface area is 154\ c m^2

Find the radius of a sphere whose surface area is 154\ c m^2

If the perimeter of a square is 16 cm, then its area is (a)4 c m^2 (b) 8\ c m^2 (c) 16\ c m^2 (d) 12\ c m^2

The area of the circle that can be inscribed in a square of side 10 cm is (a) 40pi\ c m^2 (b) 30pi\ c m^2 (c) 100\ pi\ c m^2 (d) 25\ pi\ c m^2

The area of the circle that can be inscribed in a square of side 10 cm is (a) 40pi\ c m^2 (b) 30pi\ c m^2 (c) 100\ pi\ c m^2 (d) 25\ pi\ c m^2

A solid metallic sphere of radius 8cm is melted and recast into spherical balls each of radius 2cm. The number of spherical balls, thus obtained,is (a) 16 (b) 48 (c) 64quad (d) 82