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The walls of a living room are painted with identical triangular patterns. One such triangle has the vertices \((- 3, 0)\), \((- 10, -8)\) and \((6, 7)\). If the walls of the room are entirely covered by 117 triangles, then find the area of the walls.
![tri pattern.jpg](https://resources.cdn.yaclass.in/981741b8-3d66-43e4-b91b-8122fbd5efad/tripatternw300.jpg)
Answer:
Area of the walls \(=\) square units.