Two of the end sides.
What kind of isosceles? A isosceles triangle has 3 sides, while a isosceles trapezoid has 4 sides. Hope i helped:)
It has one pair
Zero
None normally unless it's an isosceles trapezoid then it will have 1 pair
The two outer sides
Two of the end sides.
It doesn't need any in order to be a trapezoid. It can have a max of two pairs of perpendicular sides.
What kind of isosceles? A isosceles triangle has 3 sides, while a isosceles trapezoid has 4 sides. Hope i helped:)
Zero
1 pair
It has one pair
Zero
None
If it is a 45° 45° 90° isosceles right triangle, then there are 2 sides that are perpendicular.
One pair
Normally none but in the form of an isosceles trapezoid its 2 non-parallel sides are of the same lengths.