Question

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

Answer 1

The answer is C) approximately 15,7 units

Answer 2

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