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How many isosceles triangles with whole-number length sides have a perimeter of 28 units?

 Jul 10, 2021
 #1
avatar+35057 
+2

8 8 12

9 9 10

10 10 8

11 11 6

12 12 4

13 13 2

 Jul 10, 2021
 #2
avatar+336 
+2

Hey there, Guest!

 

Okay, so first, let's list all the possibilities out:

 

1. (8, 8, 12)

2. (9, 9, 10)

3. (10, 10, 8)

4. (11, 11, 6)

5. (12, 12, 4)

6. (13, 13, 2)

 

So there you have it, there are 6 isosceles triangles.

 

Hope this helped! :)

( ゚д゚)つ Bye

 Jul 11, 2021

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