6. If sides of triangular wall is 15m,11m& 6m. find its area. If it has to be painted both sides then find
the cost of painting at the rate of rs50 per m2
.
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Answer:
perimeter of the triangle = 15+11+6
= 32m
Step-by-step explanation:
2s = 32
s =32/2
s = 16
area of triangle=✓s(s-a) (s-b) (s-c)
✓16 (16-15) (16-11) (16-6)
✓16 (1) (5) (10)
area of the triangle= ✓800
cost=25✓800 rs
it may help you it's correct ???
or wrong I don't know I try my level best
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