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General Information

Related Standards: MAFS.912.G-CO.3.9
Reporting Category: Geometry: Congruence
Type: EE: Equation Editor
Difficulty: N/A
Question:

In the figure, begin mathsize 12px style stack A B with left right arrow on top space parallel to space stack C D with left right arrow on top space a n d space stack B C with left right arrow on top space parallel to space stack A E with left right arrow on top end style. Let begin mathsize 12px style angle A B D end style measure (3x+4)º, begin mathsize 12px style angle B C D end style measure(6x-8)º, and begin mathsize 12px style angle E D F end style measure (7x-20)º.

Click on the blank to enter the degree measure that completes the equation shown.

 

Answer Key:
68.5

Aligned Standards

Code Description
MAFS.912.G-CO.3.9: Prove theorems about lines and angles; use theorems about lines and angles to solve problems. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment’s endpoints.


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