Question

The area of the triangle whose
vertices are L(1, 1), M(-2, 2), N(5, 4) is​

Answer 1

Step-by-step explanation:

Area of triangle =

2

1

∣

∣

∣

∣

∣

∣

∣

∣

1

1

1

1

3

1

1

5

7

∣

∣

∣

∣

∣

∣

∣

∣

=

2

1

∣1(21−5)−1(7−5)+1(1−3)∣

=

2

1

∣16−2−2∣=6

Hence, area of the triangle with the given coordinates is 6.

Answer 2

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