Mathematics
The lengths of two sides of a triangle are 12 cm and 14 cm. The perimeter of the triangle is 36 cm. What is the length of its third side?
Mensuration
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Answer
Given:
Two sides of the triangle = 12 cm and 14 cm
Perimeter of the triangle = 36 cm
Let x be the third side of the triangle.
Perimeter of triangle = Sum of all sides
⇒ 36 = 12 + 14 + x
⇒ 36 = 26 + x
⇒ x = 36 - 26
⇒ x = 10 cm
Hence, the length of the third side is 10 cm.
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