Concept explainers
(a)
To find: Whether the dilation an enlargement or reduction.
(a)
Answer to Problem 42STP
The dilation is reduction.
Explanation of Solution
Consider the figure shown below.
Figure (1)
It is visible from the figure quadrilateral WXYZ is smaller than the quadrilateral PQRS . So, the dilation is a reduction.
Therefore, the dilation is reduction.
(b)
To find: The scale factor.
(b)
Answer to Problem 42STP
The scale factor is
Explanation of Solution
Consider the figure shown below.
Figure (1)
The scale factor is calculated as,
Therefore, the scale factor is
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Geometry, Student Edition
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- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Elementary Geometry for College StudentsGeometryISBN:9781285195698Author:Daniel C. Alexander, Geralyn M. KoeberleinPublisher:Cengage Learning