I love the pencil!

Thanks, Bill.

**Leigh

>> Am I missing something subtle? Or something obvious?
>>
>> **Leigh
>
>>      assert_equal :isosceles, triangle(1, 1, 3) # these two are from
>>      assert_equal :isosceles, triangle(2, 4, 2) #
>
>Are these really triangles? Try to draw them.
>
>-- Bill