How much area does she need to plant?

A triangular park ABC? has sides 120 m, 80 m and 50 m (as shown in the given 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.

Solution:

ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration Q19.1
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration Q19.2

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