A right triangle’s hypotenuse is 14m and one leg is 7
m. Find the length of the other leg.
Solution:-
Use the Pythagorean theorem, a2 +b2 = c2.
Next, simplify 
and 142.
147 + b2 = 196
Subtract 147 from both sides.
b2 = 49
finally, take the square root of both sides.
b = 7
The other leg has length 7 m.