Question

The hypotenuse of a right triangle is 50 mm long. One leg of the right triangle is 30 mm long. What is the length of the other leg?

Answer 1

For right triangles:\[a^2+b^2 = c^2\] where c i the hypotenuse.

Answer 2

30^2+b^2=50^2
900+b^2=2500
b^2=1600
take square root of both sides
b=40 mm