In Fig. 10.98, a circle touches the s...

In Fig. 10.98, a circle touches the side `D F` of ` E D F` at `H` and touches `E D` and `E F` produced at `K` and `M` respectively. If `E K=9c m` , then the perimeter of ` E D F` is (FIGURE) (a) 18cm (b) 13.5cm (c) 12cm (d) 9cm

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