Which letter has at least one line of symmetry? a.D b.J c.G d.L
1 answer:
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Answer:
The family of possible values for are:
Step-by-step explanation:
By Linear Algebra, we can calculate the angle by definition of dot product:
(1)
Where:
- Angle between vectors, in sexagesimal degrees.
- Norms of vectors
and
If is acute, then the cosine function is bounded between 0 a 1 and if we know that
and
, then the possible values for
are:
Minimum ()
Maximum ()
With the help of a graphing tool we get the family of possible values for are:
