Question

Need help !!!!!!!!!!

Answer 1

$s_1= \sqrt{ \cfrac{180}{6} }= \sqrt{30} \\ \\ s_2= \sqrt{ \cfrac{120}{6} }= \sqrt{20}=2 \sqrt{5} \\ \\ s_1-s_2= \sqrt{30} -2 \sqrt{5}$

Answer: √30-2√5 m