Math Problem Statement
The surface areas of two similar figures are given. S.A=192 sq meters, S.A.=1728 sq meters and V=4860 cubic meters. Find the volume of the smaller figure. Type your answers here for 1, 2, 3.
-
Use the surface areas to find the scale factor.
-
What is the volume ratio?
3. Use the volume ratio to find the smaller volume.
Solution
Let’s solve the problem step by step:
1. Use the surface areas to find the scale factor.
The surface area of similar figures is proportional to the square of the scale factor ():
Substitute the given surface areas:
Simplify:
Thus, the scale factor () is:
2. What is the volume ratio?
The volume ratio is proportional to the cube of the scale factor ():
Since :
Thus, the volume ratio is:
3. Use the volume ratio to find the smaller volume.
The volumes are proportional according to the volume ratio:
Let be the volume of the smaller figure and substitute the larger volume ():
Solve for :
Simplify:
Final Answers:
- Scale factor: .
- Volume ratio: .
- Volume of the smaller figure: .
Would you like additional details or clarification?
Here are 5 related questions:
- How are scale factor calculations affected by units?
- What if the surface areas were given in different units—how would that change the solution?
- How does this calculation relate to real-world applications like scaling down models?
- Can the same method be applied to irregular shapes if they are similar?
- Why does the volume scale by the cube of the scale factor?
Tip: Always double-check units when solving ratio problems involving geometry. Misaligned units can lead to incorrect results.
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Geometry
Ratios and Proportions
Scaling of Similar Figures
Formulas
Surface Area Ratio = (Scale Factor)^2
Volume Ratio = (Scale Factor)^3
Volume of Smaller Figure = Volume of Larger Figure × Volume Ratio
Theorems
Scaling Theorem for Similar Figures
Suitable Grade Level
Grades 8-10
Related Recommendation
Surface Area of Larger Solid in Similar Solids with Volume Ratio 27:64
Calculate the Volume of Shape B Using Scale Factors
Calculate Volume of a Rectangular Prism from Surface Area
Surface Area of Similar Prisms: Calculating from Volume Ratio
Find the Surface Area of a Smaller Container Using Volume Ratios