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
icon
Related questions
Question
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
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

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Ratios
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
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Elementary Geometry for College Students
Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning