Math Problem Statement
Circle h is a dilation of circle g with point R as the center of dilation. What is the scale factor from circle g to circle h? Points A, B, C, and D are on circle g. How far are each of these points from the center of dilation, point R? Distance from R Point on circle g Corresponding point on circle h Scale factor A B C D
Solution
To determine the scale factor from circle g to circle h, we need to understand the relationship between corresponding points on the two circles after dilation with respect to point R (the center of dilation).
Let’s break this down step by step:
-
Definition of Scale Factor:
The scale factor of a dilation is the ratio of the distances from the center of dilation (point R) to a point on the image (circle h) and the corresponding point on the pre-image (circle g). In other words: -
Corresponding Points:
The points A, B, C, D are on circle g, and each has a corresponding point on circle h. For each pair of points on circle g and circle h, the scale factor will be the same if the dilation is consistent.
What is Required:
- To find the scale factor, we need the distance from point R to each point on circle g (i.e., distance from R to A, B, C, and D) and the distance from point R to the corresponding points on circle h.
- If the dilation is uniform (same for all points), the ratio of the distances from R to any pair of corresponding points on circles g and h will give us the scale factor.
Answer Structure:
Distance from R | Point on circle g | Corresponding point on circle h | Scale factor |
---|---|---|---|
? | A | A' | |
? | B | B' | |
? | C | C' | |
? | D | D' |
To calculate the scale factor for each point, you need to know the distances from R to points A, B, C, and D on circle g and from R to the corresponding points on circle h.
Clarification Needed:
- Do you have the specific distances from R to these points?
- If so, I can plug those into the table and calculate the scale factor.
Would you like more details or assistance in calculating the scale factor? Feel free to share any given distances or further instructions.
Related Questions:
- What is the geometric relationship between the radii of circle g and circle h after dilation?
- How would the scale factor affect the circumference and area of circle h compared to circle g?
- How can we represent the dilation of circle g to circle h using coordinate geometry?
- If point R is inside circle g, how does that affect the dilation and distances of points A, B, C, and D?
- How does the scale factor change if point R is moved closer to or further from circle g?
Tip: When working with dilations, remember that the scale factor not only applies to distances but also to the entire geometry, affecting areas and perimeters proportionally.
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Math Problem Analysis
Mathematical Concepts
Dilation
Geometry
Circles
Formulas
Scale Factor = (Distance from R to corresponding point on circle h) / (Distance from R to point on circle g)
Theorems
Dilation Theorem
Similarity of Circles
Suitable Grade Level
Grades 8-10