don steward
mathematics teaching 10 ~ 16

Monday, 18 December 2017

equable right angled triangles

not using pythagoras
working out the radius of the incircle

three little triangles sum to the large one
an alternative method, using pythagoras, to find the radius of the incircle
proving that there are just two right angled equable triangles with integer lengths

two of the possible values duplicate the other two

No comments: