(c) In Figure 4, EF and AG are straight lines. The straight lines AD andBC are parallel. ZHAC = 80° and ZACH = 40°. The angles marked 0are equal.B8040E0/HFGDFigure 4(i) Explain why the two angles marked 0 are equal, and find the valueof 0.(ii) Find ZACB, explaining your reasoning.

Answered: Image /qna-images/answer/5d0b9ea7-879f-4b6a-b39e-730957090fd4.jpg

(c) In Figure 4, EF and AG are straight lines. The straight lines AD and BC are parallel. ZH AC = 80° and ZACH = 40°. The angles marked 0 are equal. 80 E 40 F 0/H D Figure 4 (i) Explain why the two angles marked 0 are equal, and find the value of 0. (ii) Find ZACB, explaining your reasoning.

(c) In Figure 4, EF and AG are straight lines. The straight lines AD and BC are parallel. ZH AC = 80° and ZACH = 40°. The angles marked 0 are equal. 80 E 40 F 0/H D Figure 4 (i) Explain why the two angles marked 0 are equal, and find the value of 0. (ii) Find ZACB, explaining your reasoning.

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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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

Question

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(c) In Figure 4, EF and AG are straight lines. The straight lines AD and
BC are parallel. ZHAC = 80° and ZACH = 40°. The angles marked 0
are equal.
B
80
40
E
0/H
F
G
D
Figure 4
(i) Explain why the two angles marked 0 are equal, and find the value
of 0.
(ii) Find ZACB, explaining your reasoning.

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