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Step-by-step explanation:
6.
a) 3cm, 5cm, 2cm
Firstly, every two sides' sum should be greater than the third side
i ) 3 + 5 > 2
= 8 > 2
ii) 5 + 2 > 3
= 7 > 3
iii) 2 + 3 > 5
5 = 5
Triangle will not be formed
b) 7cm, 7cm, 7cm
i) 7 + 7 > 7
= 14 > 7
ii) 7 + 7 > 7
= 14 > 7
iii) 7 + 7 > 7
= 14 > 7
7. Pythagorean triples are a² + b² = c²
Therefore, 6² + 8² = 12²
36 + 64 = 144
100 = 144
No, its not a triplet
May the answer helps you!!!
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