Question

1. Find the total surface area of cubes having the following sides.
(i) 3 cm
(ii) 5 cm​

Answer 1

total surface are of cube is 6*side^2

= side = 3 = 6*3^2= 6*9=54 cm^2

side = 5 = 6*5^2 = 6 *25 = 150 cm^2

$....$

Answer 2

Answer:

TSA of cube =6×a×a

where a is side of cube

Step-by-step explanation:

(i) 6×3×3

=54

(ii) 6×5×5

=150

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