Respuesta :

Answer:

1 . √98 = √49 · 2 = 7√2

2. 28² + 45² = 2809

√2809 = 53 = x

3. 18² - 12² = 180

√180 = √36 ·5 = 6√5

4. 5² + 7² ? 9²

74 ? 81

Since 74 is less than 81, it is obtuse

5. 3² + 5² = √34²

34 = 34, so it is right

6. ? = SR

7. 5/x = x/3

x² = 15

x = √15

8. Using 45 45 90 special triangle properties,

x = 10√2

Otras preguntas