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Find the scale factor of trapezoid \mathrm{Q}\mathrm{R}\mathrm{S}\mathrm{T}QRST if it is dilated to \mathrm{Q}^{'} \mathrm{R}^{'} \mathrm{S}^{'} \mathrm{T}^{'}Q ′ R ′ S ′ T ′ . Type your result in the empty box provided below.

User Mark Fletcher
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1 Answer

15 votes
15 votes

Question:

Find the scale factor of trapezoid
\mathrm{Q}\mathrm{R}\mathrm{S}\mathrm{T} if it is dilated to
\mathrm{Q}^(') \mathrm{R}^(') \mathrm{S}^(') \mathrm{T}^(').

Type your result in the empty box provided below.

Answer:

The scale factor is 2

Explanation:

Given

See attachment for plots

Required

Determine the scale factor

Using QR and Q'R' as points of reference.

From the attached plot, we have:


QR = 4\ units


Q'R' = 8\ units

The scale factor (k) from
\mathrm{Q}\mathrm{R}\mathrm{S}\mathrm{T} to
\mathrm{Q}^(') \mathrm{R}^(') \mathrm{S}^(') \mathrm{T}^('). is:


k = (Q'R')/(QR)


k = (8\ units)/(4\ units)


k =2

Find the scale factor of trapezoid \mathrm{Q}\mathrm{R}\mathrm{S}\mathrm{T}QRST if-example-1