Question

a
Find the length of a side of the
square shown below.
X
2
Х
= [?]

Answer 1

Answer:

x = 1

Step-by-step explanation:

Using Pythagoras' identity in the lower right triangle.

x² + x² = ($\sqrt{2}$ )²

2x² = 2 ( divide both sides by 2 )

x² = 1 ( take square root of both sides )

x = $\sqrt{1}$ = 1