Answer:
6[tex]\sqrt{5}[/tex]
Step-by-step explanation
1. Factor 180 into square numbers
180 = 9*4*5
2. [tex]\sqrt{180}[/tex] = [tex]\sqrt{9*4*5}[/tex]
3. Bring out the square numbers to the outside of the square root.
4. 3*2[tex]\sqrt{5}[/tex] = 6[tex]\sqrt{5}[/tex]
