The sides of a triangular field are 41 m,40 m and 9 m.Find the number of rose beds that can be prepared in the field,If each rose bed on an average needs 900 cm square space?
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area of triangle : a = 41 m ; b = 40 m c = 9 m
a+b+c/2
41+40+9/2
90/2
45
√s(s-a)(s-b)(s-c)
√45(45-41)(45-40)(45-9)
√45×4×5×36
√32400
180 m²
= 1800000 cm²
1 rose bed = 900 cm²
no of rose beds = 1800000/900
2000 rose beds can be prepared in the field.
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