Question
Two sides of a triangle are 10 cm
and 15 cm. Which of the following can be the third side of the triangle?Solution
ATQ,Â
According to the given property of triangles, the sum of the lengths of any two sides must exceed the length of the third side. Option A: Length of third side = 26 cm Sum of the other two sides = 10 + 15 = 25 cm Since, 26 > 25. This triangle cannot be formed. Option B: Length of third side = 5 cm Sum of the other two sides = 10 + 5 = 15 cm Since, 15 = 15. This triangle cannot be formed. Option C: Length of third side = 12 cm Sum of the other two sides = 10 + 12 = 22 cm Since, 22 > 12. This triangle can be formed. Option D: Length of third side = 30 cm Sum of the other two sides = 10 + 15 = 25 cm Since, 30 > 25. This triangle cannot be formed.
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