Question

Calculate:- area of a square whose side is 1.2 m (2) volume of a sphere whose radius is 1.6 CM (3) length of a rectangle having area 10.25m² and breadth 2.5m

Answer 1

1) area of square = (side)^2 = (1.2)^2 = 1.44 m^2

2) volume = 4/3 π$r^{3}$

                 = 17.157 cm^3

3) l*b = area

   l*2.5 = 10.25

    ∴l = 4.1 m