Question

find the area of the triangle formed by the points(1,2),(3,-4) and (-2,0).​

Answer 1

Step-by-step explanation:

Given Find the area of the triangle formed by the points(1,2),(3,-4) and (-2,0).

• We need to find the area of the triangle formed by the points (1,2), (3,4) and (-2,0)

• So we have x1 = 1, y1 = 2, x2 = 3, y2 = -4, x3 = -2, y3 = 0
• Now area of the triangle will be  
•                                          = ½ [ (x1(y2 – y3) + x2(y3 – y1) + x3(y1 – y2)]
•                                         = ½ [ 1(- 4 – 0) + 3(-2 – 2) + 0 (2 + 4)]
•                                         = ½ [1 (- 4) + 3(-4)]
•                                         = ½ [ - 4 – 12 ]
•                                         = ½ (- 16)
•                                           = - 8
• Since area cannot be negative we get area of triangle as 8 sq units

Reference link will be

https://brainly.in/question/23850553

Answer 2

Answer:

8sq units

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