neena made a triangle whose lengths are 15cm,13cm,10cm respectivly.she wants to decorate its boundry with a colourful strip twice.find the length of strip
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Answer:
76 cm
Step-by-step explanation:
perimeter of triangle = a+b+c
therefore, 2p=2(15+13+10)
2p=2*38
2p=76cm
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