ASAP please help me I need this quick
The question and answers are in the picture
![ASAP please help me I need this quick The question and answers are in the picture class=](https://us-static.z-dn.net/files/df9/e0df7bbe99f8f9fc7c5f7a82cf10dc39.png)
Answer:
√5
Step-by-step explanation:
Pythagorean theorem:
a² + b² = c²
1² + 2² = x²
1 + 4 = x²
5 = x²
√5 = x