Geometry

Question Analysis

The main focus is determining the base and height of the triangle from the given vertex coordinates and applying the triangle area formula .

Key Concept Explanation

The area formula for a triangle is , where  is the base and  is the height. In a coordinate plane, when two points share the same  - coordinate, the vertical distance between them can be the height, and  when two points share the same  - coordinate, the horizontal distance can be the base.

Step - by - Step Solution

1. Observe that points  and  have the same  - coordinate. The height  is .

2. Points

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