20 points!~ And thanks if you help me.
1 answer:
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Answer: 19.8 Units
Step-by-step explanation:
The triangle is shown in the attached figure, and have three vertices: ,
and
.
Each vertice represents a point in the cartesian plane and the length of each side of the triangle is the modulus of each vector.
In this sense, the modulus is calculated as shown:
Hence, for each vector:
Now, the perimeter of a triangle is the sum of its three sides:
Finally:
