Triangle congruence rules, step by step
Two triangles are congruent when their matching parts are equal, and the rules say how few of those you need to be sure.
The question
SSSSASASAAASHL
Which rule shows the triangles are congruent?
Which congruence rule?
marks:a right angle in each, and the hypotenuse with one leg marked equal
HL=hypotenuse and leg, for right triangles
HL
- Read the marks first — they are the givens. Here there are a right angle in each, and the hypotenuse with one leg marked equal.
- In a right triangle the hypotenuse and one leg give the other leg by Pythagoras, so the two triangles have to match.
- So the rule is HL.
How it works.
- 01
Read the marks first — they are the givens. Here there are a right angle in each, and the hypotenuse with one leg marked equal.
- 02
In a right triangle the hypotenuse and one leg give the other leg by Pythagoras, so the two triangles have to match.
- 03
So the rule is HL.