8
45°
Find the value of x.
A. 4
B. 8√√2
2
X
C. 4√2
D. 8√√2
45°

Hello,
Pythagorean theorem :
x² = 8² + 8²
x² = 64 + 64
x² = 128
x = √128
x = √(64 × 2)
x = √(8² × 2)
x = 8√2
→ Answer D