Respuesta :
The surface area of the smaller solid is 112 km².
What are Similar Solids?
Similar shapes are enlargements of two shapes using a scale factor.
The ratio of the volume of similar solids is the ratio of the cube of their length.
Formula:
- V/v = L³/l³................... Equation 1
- L/l = ∛(V/v)............... Equation 2
Where:
- V = Volume of the larger solid
- v = volume of the smaller solid
- L = Length of the larger solid
- l = Length of the smaller solid.
From the question,
Given:
- V:v = 729/64
Substitute the value into equation 2
- L/l = ∛(729/64)
- L/l = 9/4
To calculate the area of the smaller solid, we use the formula below
- A/a = L²/l²
Where:
- a = Area of the smaller solid.
- A = Area of the larger solid
make a the subject of the equation
- a = (l²A)/L²................ Equation 2
From the question,
Given:
- l/L = 4/9
- A = 567 km²
Substitute these values into equation 2
- a = (4²/9²)567
- a = 112 km²
Hence, the surface area of the smaller solid is 112 km².
Learn more about similar shapes here: https://brainly.com/question/2644832
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