Help...math problem..triangles?
The perimeter of a triangle is 79.75 inches.the second half as big the first side. The third side is 7.25 in. Greater then the first side
What is the length of the longest side o the triangle? Give answer as decimal....
Help please..thanks..Matt :)
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First side = 2x
Second side = x
Third side = 2x + 7.25
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Set up your equation:
2x + x + 2x + 7.25 = 79.75
Combine the like terms:
5x + 7.25 = 79.75
Subtract 7.25 from both sides:
5x = 72.5
Divide both sides by 5:
x = 14.5
2x + 7.25 = 36.25
The longest side is 36.25 inches long.
What do wu mean first side , second side?