Question

A. 1. Find the volume of a cube whose total surface area is 384 cm
2
2. How many soap cakes each measuring 7 cm x 5 cm x 2.5 cm can be placed in a box of
size 56 cm x 40 cm x 25 cm?​

Answer 1

1.

given - surface area of cube 384cm2

to find - volume of cube

solution-                                                                                                             surface area of cube =384 cm2       (given)

6*(side)2 = 384cm2

(side)2 =384/6 cm2                                                                                                   (side)2 = 64cm2

side =  (64cm2)1/2 Step-by-step explanation:

side = 8 cm      

volume = (side)3

            =512 cm3