Question

Practice Set 47
1. Find the total surface area of cubes having the following sides.
(1) 3 cm (ii) 5 cm (iii) 7.2 m (iv) 6.8 m (v) 5.5 m​

Answer 1

Answer:

TSA of cube=6a^2

which implies,

i) 6×3×3=54cm^2

ii) 6×5×5=150cm^2

iii) 6×7.2×7.2=311.04m^2

iv) 6×6.8×6.8=277.44m^2

v) 6×5.5×5.5=181.5m^2.