The volume of concrete that was used to pour the sidewalk is 270 cubic meters and this can be determined by using the formula of volume.
Given :
A sidewalk is 15cm high, 30m wide, and 60m long.
The following steps can be used in order to determine the volume of concrete that was used to pour the sidewalk:
Step 1 - The formula of volume can be used in order to determine the volume of concrete that was used to pour the sidewalk.
Step 2 - The formula of volume is given below:
[tex]\rm V = L\times W \times H[/tex]
where L is the length, W is the width, and H is the height.
Step 3 - Now, substitute the values of the known terms in the above formula.
[tex]\rm V = 60\times 30 \times \dfrac{15}{100}[/tex]
Step 4 - Simplify the above expression.
V = 270 cubic meters
Therefore, the correct option is A).
For more information, refer to the link given below:
https://brainly.com/question/1578538
