Question

Find the cost of painting a cubical block of side length 2 m, if painting costs $0.50 per sq.m

Answer 1

Answer: 4$

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Step-by-step explanation:

Given : i) length of cubic block (l) = 2m

ii) Painting cost = 0.50$/sq.m.

Here we have to paint a cubic block.

Thus, we have to find first surface area of cubic block.

Surface area of a cube

= l^3

=2^3

=8 sq.m.

Thus,

Painting cost to paint a cubic block

= 8 ×0.50

= 4 $

Ans. Painting cost to paint a cubic block is 4$.

Answer 2

Answer:

4

Step-by-step explanation:

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