Question

Does anyone know the answer?

Answer 1

x = 3
`√(2)`

Explanation:

Since the triangle is isosceles then the 2 legs are congruent, both x

Using Pythagoras' identity in the right triangle

x² + x² = 6²

2x² = 36 ( divide both sides by 2 )

x² = 18 ( take square root of both sides )

x =
`√(18)` =
`√(9(2))` =
`√(9)` ×
`√(2)` = 3
`√(2)`