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21 votes
I need help finding the perimeter

I need help finding the perimeter-example-1
User Imtiaz Pabel
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2.5k points

1 Answer

12 votes
12 votes

Answer:

Perimeter (to the nearest tenth) = 24.3

Explanation:

  1. Using the math tool graph your points on the graph and connect them to each other. You should have something like this (look at the first image)* [note the scale of my graph is one but I skip the odd numbers]
  2. From there you can count the distance from those points. To find the distance from point R to Q and from point Q to S you can simply count the number of square from those points. For instance from point R to point Q is 9 units and from point Q to point S is 5 units (look at the second image)
  3. To find the distance from point R to point S you do the Pythagorean theorem since this triangle is a right triangle which is Leg² + Leg² = Hypothnose². Let line segments RQ and QS be the legs and let line segment RS be the hypothnose. Since the square root of the hypothnose is an irrational number we take advantage of round to the nearest tenth so 10.295... will become 10.3. (In case you're confused follow the steps of the third image)
  4. To find the perimeter of the triangle you add all of the sides together so the formula for solving for it would be P = 9 + 5 + 10.3 which is 24.3. The perimeter is 24.3. (The foruth and last image shows all the work)

I need help finding the perimeter-example-1
I need help finding the perimeter-example-2
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I need help finding the perimeter-example-4
User Abel Mohler
by
2.4k points