• # question_answer 30) Use the information given in the diagram to find the value of x. A)  $3\sqrt{5}$     B)  $6\sqrt{5}$     C)  $2\sqrt{5}$                 D)  $5\sqrt{5}$

(d): Join BD IN $\Delta \,ABD,BD=\sqrt{{{20}^{2}}+{{15}^{2}}}=25$ IN $\Delta BCD,\sqrt{{{x}^{2}}4{{x}^{2}}}={{25}^{2}}$ $=\sqrt{5x}=25$ $x=\frac{25}{\sqrt{5}},=5\sqrt{5}.$