right triangle
hypotenuse
yes
HL and HA
My geometry teacher uploads his lessons to YouTube. The proof itself starts at 1:28.
SSS
HL congruence theorem
geometry
right triangle
HL - usually in upper case - stands for "Hypotenuse - Leg". It is a specialized triangle congruence theorem, the "regular ones are SSS, SAS, and ASA. HL says that in two right triangles, if the hypoteneuses and a pair of legs (the sides forming the right angle) are congruent, then the triangles are congruent.
hypotenuse
yes
It is a special case of:the 3 sides (SSS) congruence, using Pythagoras,the 2 sides and included angle (SAS) congruence, using the sine rule.
HL and HA
HL Congruence Theorem says: If the hypotenuse and one leg of one right triangle are congruent to the hypotenuse and one leg of another right triangle, then the two right triangles are congruent.sss
My geometry teacher uploads his lessons to YouTube. The proof itself starts at 1:28.
LA and SAS [APEX]