the sides of a triangular plot are in the ratio 6:7:8 and it's perimeter is 420 m. find it's area
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Area is 144.5 m^2
- Consider the sides as 6x 7x 8x
- Perimeter of triangle is = sum of all sides
- 6x+7x+8x= 420
- 25x=420
- x=17
- Area=1/2×b×h
- =1/2×289=144.5
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