One side of a triangle is 4 cm longer than the shortest side and 2 cm shorter than the longest side. The perimeter is 38 cm. Find the dimensions of the triangle. A. 8, 12, 18 B. C. 9.3, 13.3, 15.3 D. 11, 13, 14
Suppose x is one side of the triangle, with given conditions: Its shortest side is: (x - 4)cm Its longest side is: (x + 2)cm The perimeter is: x + (x - 4) + (x + 2) = 38 Solve the equation we get x = 40/3 = 13.3 cm The shortest side = 40/3 - 4 = 40/3 - 12/3 = 28/3 = 9.3 cm The longest side = 40/3 + 2 = 40/3 + 6/3 = 46/3 = 15.3 cm The dimensions of the triangle is C. 9.3, 13.3, 15.3
Question
Updated 3/24/2014 1:18:01 AM
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Suppose x is one side of the triangle, with given conditions:
Its shortest side is: (x - 4)cm
Its longest side is: (x + 2)cm
The perimeter is: x + (x - 4) + (x + 2) = 38
Solve the equation we get x = 40/3 = 13.3 cm
The shortest side = 40/3 - 4 = 40/3 - 12/3 = 28/3 = 9.3 cm
The longest side = 40/3 + 2 = 40/3 + 6/3 = 46/3 = 15.3 cm
The dimensions of the triangle is C. 9.3, 13.3, 15.3
Confirmed by andrewpallarca [3/24/2014 1:19:26 AM]

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