Respuesta :
Answer:
Two sides have the same length, which is less than the length of the third side.
Step-by-step explanation:
An isosceles triangle has two opposite sides. If the two angles are equal , it means the triangle is an isosceles. Because 90 degrees is greater than 45 degrees, the two sides with the same length, would have a smaller length than the third side.
this is also a right angled triangle because it has a 90 degree angle. the sum of the square of the two sides would be equal to the square of th third side