Question

Triangle has a leg that Triangle has a leg that measures 20 units and a hyptenuse that measures 25 units what is the length of the third side

Answer 1

Answer:

15

Step-by-step explanation:

Hypotenuse = 25

Opposite=20

Adjacent =?

Use Pythagoras Theorem :

${hypotenuse}^{2} = {opposite}^{2} + {adjacent}^{2}$

Input values

${25}^{2} = {20}^{2} + {x}^{2} \\ 625 = 400 + {x}^{2} \\ 625 - 400 = {x}^{2} \\ 225 = {x}^{2}$

Square root both sides

$\sqrt{225} = \sqrt{ {x}^{2} } \\ 15 = x \\ x = 15$