l+m+n=4 andlm+mn+nl=7
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Answer:
1. Draw LN=7cm.
2. With L as centre and radius =6.4cm, draw an arc at M.
3. With N as centre and radius =5.5cm, draw an arc at M.
4. Join LM, MN.
5. Hence Δ LMN is the required triangle.
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