in any right triangle
if the legs are lenght a and b and the hypotohuse is lengh c then
a²+b²=c²
the longest length is the hypothuse
so c=hypothuse=7.5
2.1 and 7.2 are the legs
2.1²+7.2²=7.5² should be true if it is a right triangle
evalaute
4.41+51.84=56.25
56.26=56.25
true
they do form a right triangle
