50 m
19 A triangular park ABC has sides 120 m, 80 m and
50 m (as shown in the adjoining figure). A gardner
Dhania has to put a fence around it and also plant
grass inside. How much area does she need to
plant? Find the cost of fencing it with barbed wire
at the rate of 20 per metre leaving a space 3 m
wide for a gate on one side,
B4
120
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