Answer:
Isosceles triangle
Step-by-step explanation:
Given
Two congruent angles and two congruent sides
Base on the given description, the concept being described is an isosceles triangle, as it has two congruent sides and two congruent angles.
If each angle measures 45 degrees each, then the third angle is 90 degrees.
This is shown below.
[tex]\theta + 45 + 45= 180[/tex] --- angles in a triangle
[tex]\theta + 90= 180[/tex]
Subtract 90 from both sides
[tex]\theta = 90[/tex]
