Answer:
310.6m^3
Step-by-step explanation:
Using proportions, it is found that:
- The ratio of heights is of 1:5.
- The ratio of surface areas is of 1:25.
- The ratio of volumes is of 1:125.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The heights are measured in units, hence the ratio is:
The surface areas are measured in units squared, hence the ratio is:
(1:5)² = 1:25.
The volumes are measured in cubic units, hence the ratio is:
(1:5)³ = 1:125.
More can be learned about proportions at brainly.com/question/24372153
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Answer:
Step-by-step explanation:
Volume = length * width * height
1) Volume = ( 7 * 3 * 7) + ( [7- 5) * 2 * 7)
= 147 + ( 2 *2 *7)
= 147 + 28
= 175 cubic ft
2) Volume = (6 * 3 *3 ) + ( 1 * 2 *3)
= 54 + 6
= 60 cubic ft
3) Volume = ( 3 * 4 * 7 ) + ( 7 * 4 * [6-4] )
= 84 + ( 7 * 4 * 2)
= 84 + 56
= 140 cubic ft
4) Volume = (3 * 4 * [6-4] ) + ( 12 * 4 * 4)
= (3* 4 * 2) + 192
= 24 + 192
= 216 cubic ft