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In triangle ABC, if the lengths of the sides are 5, 12, and 13, what is the peri

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Question: In triangle ABC, if the lengths of the sides are 5, 12, and 13, what is the perimeter?

Options:

  1. 30
  2. 25
  3. 20
  4. 18

Correct Answer: 25

Solution: 

Perimeter = a + b + c = 5 + 12 + 13 = 30.

In triangle ABC, if the lengths of the sides are 5, 12, and 13, what is the peri

Practice Questions

Q1
In triangle ABC, if the lengths of the sides are 5, 12, and 13, what is the perimeter?
  1. 30
  2. 25
  3. 20
  4. 18

Questions & Step-by-Step Solutions

In triangle ABC, if the lengths of the sides are 5, 12, and 13, what is the perimeter?
  • Step 1: Identify the lengths of the sides of triangle ABC. They are 5, 12, and 13.
  • Step 2: Write the formula for the perimeter of a triangle, which is the sum of the lengths of all its sides: Perimeter = a + b + c.
  • Step 3: Substitute the values of the sides into the formula: Perimeter = 5 + 12 + 13.
  • Step 4: Calculate the sum: 5 + 12 = 17, then 17 + 13 = 30.
  • Step 5: State the final result: The perimeter of triangle ABC is 30.
  • Triangle Properties – Understanding the properties of triangles, including how to calculate the perimeter by summing the lengths of all sides.
  • Perimeter Calculation – The formula for perimeter is the sum of the lengths of all sides of a polygon, specifically applied here to a triangle.
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