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Find the measure of the missing Angles B 115° A D

Find the measure of the missing Angles B 115° A D

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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### Educational Guide on Dilation #### Topic: Understanding Dilation in Geometry **Objective:** Learn how to find the scale factor of dilation and identify the center of dilation. **Content:** 2. **Show your understanding!** - The task is to explain how to find the scale factor of dilation and determine the center of dilation. #### Visual Elements: - **Design:** The slide features a colorful geometric pattern of triangles in shades of blue, purple, and pink on the top left and bottom right corners, enhancing visual engagement. - **Text Style:** "Closing Task" is highlighted in green with a small clipboard icon, indicating the importance of the content as a concluding activity. This section aims to solidify your understanding of dilation by actively applying the concepts of scale factor and center within practical scenarios.
Transcribed Image Text:### Educational Guide on Dilation #### Topic: Understanding Dilation in Geometry **Objective:** Learn how to find the scale factor of dilation and identify the center of dilation. **Content:** 2. **Show your understanding!** - The task is to explain how to find the scale factor of dilation and determine the center of dilation. #### Visual Elements: - **Design:** The slide features a colorful geometric pattern of triangles in shades of blue, purple, and pink on the top left and bottom right corners, enhancing visual engagement. - **Text Style:** "Closing Task" is highlighted in green with a small clipboard icon, indicating the importance of the content as a concluding activity. This section aims to solidify your understanding of dilation by actively applying the concepts of scale factor and center within practical scenarios.
**Question 1: Find the Measure of the Missing Angles** In the image, there is a trapezoid labeled ABCD. The angle at vertex B is marked as 115°. The trapezoid has two pairs of congruent sides, indicated by short line segments on sides AB and CD, and on sides BC and AD, suggesting that it may be an isosceles trapezoid. Several colorful triangles decorate the corners of the image. To find the missing angles, apply the properties of trapezoids and angle sum rules.
Transcribed Image Text:**Question 1: Find the Measure of the Missing Angles** In the image, there is a trapezoid labeled ABCD. The angle at vertex B is marked as 115°. The trapezoid has two pairs of congruent sides, indicated by short line segments on sides AB and CD, and on sides BC and AD, suggesting that it may be an isosceles trapezoid. Several colorful triangles decorate the corners of the image. To find the missing angles, apply the properties of trapezoids and angle sum rules.
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