Question

2. A cube of side 7cm is painted with red coloured circle of
diameter equal to the 7cm on each face. What is the area
of the unpainted surface of the circle?​

Answer 1

63 cm^2

Step-by-step explanation:

radius of circle r = 7/2 cm

area of the unpainted surface

= 6(a^2 - πr^2) = 6(49 - 22/7*49/4)) = 6×10.5 = 63 cm^2