The sides of the triangular field are 41m, 40m, and 9m. If each rose bed requires 90sq.m of space how many rose beds can be prepared in the field?
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Step-by-step explanation:
by heron's formula
s=41 +40 +9/2 = 45 m
area = root[45(45-41)(45-40)(45-9)]
=root[ 45 x 4 x 5 x 36]
= 2 x 6 x 5 x 3
= 180 m²
180 m² = 1800000cm²
number of beds that can be prepared = 1800000/900 = 2000 rose beds
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