Answer:
It does appear to be correct on edge 2021 gentlemen and fellow degenerates. (º_º)
Step-by-step explanation:
The area of the Δ LMN is given as: 4 square units.(Option B). See explanation below.
Note that we are given the following vertices:
(1, -1), (3, 2), and (1, 3).; (x,y)
It is known that the area of the triangle whose vertices are (x₁, y₁), (x₂, y₂), (x₃, y₃) is:
1/2 [x₁(y₂-y₃) + x₂(y₃-y₁) + x₃(y₁-y₂)]
hence, the area of the above triangle is:
= 1/2 [1 (2-3) + 3(3-(-1)) + 1(-1-(-2))
= 4 Square units.
See graph attached.
Learn more about vertices at:
https://brainly.com/question/19044159
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