Question

The length of one leg or a right triangle is 4 meter, and the length of the hypotenuse is 15 meters. What is the length of the other leg

Answer 1

Using the Pythagorean theorem a^2 +b^2 = C^2
 
a and b are sides and C is the hypotenuse.

4^2 + b^2 = 15^2

16 + b^2 = 225

Subtract 16 from each side:

b^2 = 209

b = SQRT(209)

As a decimal it would be 14.45