A triangle can be constructed by taking its sides as:
A
1.8cm,2.6cm,4.4cm
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B
2cm,3cm,4cm
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C
2.4cm,2.4cm,6.4cm
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D
3.2cm,2.3cm,5.5cm
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Solution
The correct option is B2cm,3cm,4cm
The triangle inequality states that the sum of the lengths of any two sides of a triangle must be greater than (not equal to) the length of the third side.
For example:- If A,B and C are the sides of a triangle then, a triangle can only be constructed when :
A+B>C
A+C>B
B+C>A
So, here each option can be easily verified to check its feasibility to make a triangle:
(A)
1.8+2.6>4.4 ..... [Doesn't Satisfies]
1.8+4.4>2.6 ..... Satisfies
2.6+4.4>1.8 ..... Satisfies
(B)
2+3>4 ..... Satisfies
2+4>3 ..... Satisfies
3+4>2 ..... Satisfies
(C)
2.4+2.4=4.8>6.4 ..... [Doesn't Satisfies]
2.4+6.4=9.0>6.4 ..... Satisfies
(D)
3.2+2.3=5.5>5.5 ..... [Doesn't Satisfies]
Hence, option B is correct and its sides can be used to construct a triangle.