HA: If the hypotenuse and an acute angle of one right triangle are congruent
to the hypotenuse and corresponding acute angle of another right triangle
then the triangles are congruent.
1. Right Triangles ABC and DEF 1. Given.
with right angles at C and F.
2. AB = DE. 2. Given.
3. / C = / F. 3. All right angles are equal.
4. / A = / D. 4. Given.
5. Triangle ABC = Triangle DEF. 5. AAS