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The surface areas of two similar solids are 404 yd^2 and 1,232 yd^2. The volume of the larger solid is 2,568 yd^3. What is the volume of the smaller solid?thank you ! :)

The surface areas of two similar solids are 404 yd^2 and 1,232 yd^2. The volume of-example-1
User VVinceth
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2 Answers

26 votes
26 votes

Answer:

it is actually 842 yd^3

Explanation:

2568 times 404 divided by 1232 = 842

User Lars Kotthoff
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2.5k points
22 votes
22 votes

Solution

- The way to solve the question is to use a formula that relates the areas and volumes of similar solids.

- The formula is given below:


\begin{gathered} \text{ Let the dimension of the smaller solid be }l\text{ and the dimension of the bigger solid be }L \\ \text{ Let the area and volume of the smaller solid be }a\text{ and }v,\text{ and those of the bigger solide be }A\text{ and }V \\ \text{ Thus, the ratio of their areas and volumes are given as} \\ (l^2)/(L^2)=(a)/(A)\text{ \lparen Equation 1\rparen} \\ \\ (l^3)/(L^3)=((l)/(L))^3=(v)/(V)\text{ \lparen Equation 2\rparen} \\ \\ \text{ From Equation 1, we have:} \\ (l)/(L)=\sqrt{(a)/(A)} \\ \\ \text{ We can substitute this expression into Equation 2 as follows:} \\ (\sqrt{(a)/(A)})^3=(v)/(V)\text{ \lparen Equation 3\rparen} \end{gathered}

- Equation 3 gives us the formula that relates the areas and volumes of similar solids.

- Thus, we can apply it to solve the question as follows:


\begin{gathered} a=404yd^2,A=1232yd^2 \\ v=?,V=2568 \\ \\ \text{ Thus, we have:} \\ (\sqrt{(404)/(1232)})^3=(v)/(2568) \\ \\ \text{ Multiply both sides by 2568} \\ \\ \therefore v=2568*(\sqrt{(404)/(1232)})^3 \\ \\ v=482.22642...\approx482yd^3 \end{gathered}

Final Answer

The volume of the smaller solid is 482yd³

User Karon
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3.4k points