Math Problem Statement

Which set of numbers could represent the lengths of the sides of a right triangle?

Responses

5, 12, 13

5, 12, 13

6, 7, 8

6, 7, 8

16, 32, 36

16, 32, 36

8, 12, 16

8, 12, 16

Solution

To determine which sets of numbers could represent the lengths of the sides of a right triangle, we need to use the Pythagorean Theorem, which states:

a2+b2=c2a^2 + b^2 = c^2

Where aa and bb are the legs (the two shorter sides), and cc is the hypotenuse (the longest side).

Let's evaluate each set:

  1. 5, 12, 13:

    • Hypotenuse = 13
    • 52+122=25+144=1695^2 + 12^2 = 25 + 144 = 169
    • 132=16913^2 = 169
    • Since the equation holds true, this is a valid set for a right triangle.
  2. 6, 7, 8:

    • Hypotenuse = 8
    • 62+72=36+49=856^2 + 7^2 = 36 + 49 = 85
    • 82=648^2 = 64
    • Since 856485 \neq 64, this is not a valid set.
  3. 16, 32, 36:

    • Hypotenuse = 36
    • 162+322=256+1024=128016^2 + 32^2 = 256 + 1024 = 1280
    • 362=129636^2 = 1296
    • Since 128012961280 \neq 1296, this is not a valid set.
  4. 8, 12, 16:

    • Hypotenuse = 16
    • 82+122=64+144=2088^2 + 12^2 = 64 + 144 = 208
    • 162=25616^2 = 256
    • Since 208256208 \neq 256, this is not a valid set.

Conclusion: The only valid set for a right triangle is 5, 12, 13.

Let me know if you'd like further details on any of these steps!

Related Questions:

  1. How can we use the Pythagorean theorem to find the missing side of a right triangle?
  2. What are other ways to identify right triangles besides using the Pythagorean theorem?
  3. How do we determine the hypotenuse of a right triangle given the legs?
  4. Can non-integer values be the sides of a right triangle? If so, give an example.
  5. What is the significance of Pythagorean triples in geometry?

Tip:

Remember that for a right triangle, always ensure that the largest number is squared to check if it matches the sum of the squares of the other two sides.

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Math Problem Analysis

Mathematical Concepts

Geometry
Pythagorean Theorem

Formulas

a^2 + b^2 = c^2

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 7-9