Question

The sides of a triangular field are 41m, 40m, and 9m. Find the number of flowerbeds that can be prepared in the field , if each flower bed needs 180 cm2 of space?

Answer 1

Answer:

Area of a triangular= √s×(s-a)(s-b)(s-c) ,where a,b,c are sides of the triangle and s is the semi perimeter. so, area of the field=√[45×(45-41)(45-40)(45-9)] = √(45 × 4 × 5 × 36) = √32400 = 180m^2 =1800000cm^2.

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