What is the perimeter of the triangle? a) approximately 22.5 units b) approximately 18.1 units c) approximately 15.7 units d)approximately 12.2 units

Well, the bigger side equals 6, that we can see from the graph, also, the smaller side equals 3, which we can also see on the graph. There is a right angle between these two sides, so we can use the Pythagorean theorem to find the hypotenuse c:

c^2 = 6^2 + 3^2

c^2 = 36 + 9

c^2 = 45

c = square root of 45 = approximately 6,7

Then the perimeter = 6 + 3 + 6,7 = 15,7

The answer is C) approximately 15,7 units

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