1. Look at the isosceles triangle below. Determine which of the following angle measures are correct. Select two that apply. (7x-34)° O A M/BCA = 58° O B mzBCD = 58° O C mzDCB = 122° O D mzBAC = 48° (4.r +2)°
1. Look at the isosceles triangle below. Determine which of the following angle measures are correct. Select two that apply. (7x-34)° O A M/BCA = 58° O B mzBCD = 58° O C mzDCB = 122° O D mzBAC = 48° (4.r +2)°
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
Related questions
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

Transcribed Image Text:Once you have completed the above problems and checked your solutions, complete the Lesson Checkpoint
below.
OComplete the Lesson Reflection above by circling your current understanding of the Learning Goal.
1. Look at the isosceles triangle below. Determine which of the following angle measures are correct.
Select two that apply.
A(7x-34)°
O A
M<BCA= 58°
OB MZBCD = 58
M/DCB =
122°
O D
MLBAC 48°
(4.r+2)°
9MI
DELL
Expert Solution

Step 1
angle(BAC) = angle(BCA) = (4x+2)°
&, angle(ABC) = (7x-34)°
Since, the sum of the angles of a triangle is, 180°, so we have,
(4x+2)° + (4x+2)° + (7x-34)° = 180°
So, 15x - 30 = 180
So, 15x = 210
So, x = 14
Trending now
This is a popular solution!
Step by step
Solved in 2 steps

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, geometry and related others by exploring similar questions and additional content below.Recommended textbooks for you

Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,

Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning

Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,

Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning