Question

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PLEASE PLEASE PLEASE HELP!!
Can someone please help me with this problem ? I'll seriously appreciate it, and thank you so so so much in advance!!
DON'T ANSWER IF YOU'RE UNSURE!!! I need actual help, please don't just take my points. (: Thank you!

Answer 1

$\bf \qquad \qquad \textit{ratio relations} \\\\ \begin{array}{cccllll} &Sides&Perimeter&Area&Volume\\ &-----&-----&-----&-----\\ \cfrac{\textit{similar shape}}{\textit{similar shape}}&\cfrac{s}{s}&\cfrac{s}{s}&\cfrac{s^2}{s^2}&\cfrac{s^3}{s^3} \end{array}\\\\ -----------------------------\\\\ \begin{array}{llll} ratios\to &perimeter&area\\ -----&-----&-----\\ \cfrac{\textit{small triangle}}{\textit{large triangle}}&\cfrac{15}{24}&\cfrac{15^2}{24^2} \end{array}$