Question

Tell whether a triangle with sides of the given lengths is 45°-45°-90°, 30°-60°-90°, or neither.
15, 15, 21.2
A. 45°-45°-90°
B. 30°-60°-90°
C. neither

Answer 1

45-45-90 triangles have sides with ratios: x: x : xsqrt2
so A

Answer 2

Thank you!