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The coordinates of the vertices of a polygon are (-2,-2),(3,-3),(4,-6) and(-2,-4). What is the perimeter of the polygon to the nearest tenth of a unit. A)15.3 units B)16.9 units C)17.5 units D)17.9 units

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Final answer:

To find the perimeter of the polygon, calculate the distance between each pair of consecutive vertices and add up these distances. The perimeter of the polygon is approximately 15.3 units.

Step-by-step explanation:

To find the perimeter of a polygon, you need to calculate the distance between each pair of consecutive vertices and then add up these distances.



Let's calculate the distance between (-2,-2) and (3,-3):



Distance = sqrt[(3 - (-2))^2 + (-3 - (-2))^2] = sqrt[5^2 + 1^2] = sqrt[25 + 1] = sqrt[26]



Similarly, the distances between consecutive vertices are:



Between (3,-3) and (4,-6): sqrt[(4 - 3)^2 + (-6 - (-3))^2] = sqrt[1^2 + 3^2] = sqrt[1 + 9] = sqrt[10]



Between (4,-6) and (-2,-4): sqrt[(-2 - 4)^2 + (-4 - (-6))^2] = sqrt[(-6)^2 + 2^2] = sqrt[36 + 4] = sqrt[40]



Between (-2,-4) and (-2,-2): sqrt[(-2 - (-2))^2 + (-2 - (-4))^2] = sqrt[0^2 + 2^2] = sqrt[0 + 4] = sqrt[4]



To find the perimeter, add up these distances: sqrt[26] + sqrt[10] + sqrt[40] + sqrt[4] = approximately 15.3 units.



Therefore, the correct answer is A) 15.3 units.

User Hegez
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is there a picture that you can show
User Petr Joachim
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