Question

What is the length of side X in the above right triangle​

Answer 1

x ≈ 12

Explanation:

Using Pythagoras' identity in the right triangle

x² + 9² = 15²

x² + 81 = 225 ( subtract 81 from both sides )

x² = 144 ( take the square root of both sides )

x =
`√(144)` = 12

Answer 2

x = 12

Explanation:

Leg 1 = 9

Leg 2 = x

Hypotenuse = 15

Using Pythagorean Theorem;

A² + B² = C²

9² + x² = 15²

81 + x² = 225

x² = 225 - 81

x² = 144

x =
`√(144)`

x = 12

Hope this helps!