Question

the lenght of the hypotenuse of a right triangle is 4cm. the lenght of one leg iz 2m. find the lenght of the other leg.?

Answer 1

let the third side be x

x^2 + 2^2 = 4^2
x^2 + 4 = 16

etc.

Answer 2

30,60,90 triangle
1, sqrt 3, 2
so
2, 2 sqrt 3 4