The pair .......... is a like surds.

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(B) Two surds are called 'like surds' if they have the same radicand after simplification.$A) \sqrt{8} = 2\sqrt{2}$ and $\sqrt{16} = 4$. These are not

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$\sqrt{18}$ and $\sqrt{50}$

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(B) Two surds are called 'like surds' if they have the same radicand after simplification.$A) \sqrt{8} = 2\sqrt{2}$ and $\sqrt{16} = 4$. These are not like surds.$B) \sqrt{18} = \sqrt{9 	imes 2} = 3\sqrt{2}$ and $\sqrt{50} = \sqrt{25 	imes 2} = 5\sqrt{2}$. Both have the same surd part $\sqrt{2}$,so they are like surds.$C) \sqrt{72} = 6\sqrt{2}$ and $\sqrt{6}$. These are not like surds.$D) \sqrt{24} = 2\sqrt{6}$ and $\sqrt{48} = 4\sqrt{3}$. These are not like surds.Therefore,the correct pair is $\sqrt{18}$ and $\sqrt{50}$.

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