1.
1 answer:
We determine that the correct choice is: B. The length of must be equal to the length of
.
Vectorially speaking, any point is translated by means of the following formula:
(1)
Where:
- Original point.
- Translated point.
- Translation vector.
Since the entire quadrilateral is translated the same distance, then the length of is equal to the length of
. Hence, the correct choice is B.
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Answer:
The volume of the hollow metal pipe is approximately 72.571 cubic centimeters.
Step-by-step explanation:
The volume of the metal is the space occupied by the hollow pipe. Since it is a hollow cylinder, the volume (), in cubic centimetres, is defined by following expression:
(1)
Where:
- External and internal diameters, in centimetres.
- Length, in centimetres.
If we know that ,
and
, then the volume of the hollow metal pipe is:
The volume of the hollow metal pipe is approximately 72.571 cubic centimeters.