10) What is the measure of

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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I testing.
A USATestprep, LLC -..
anding: Theorems & Parallelograms
10) What is the measure of <A?
x+58
85°
x+53
A
Transcribed Image Text:I testing. A USATestprep, LLC -.. anding: Theorems & Parallelograms 10) What is the measure of <A? x+58 85° x+53 A
Expert Solution
Step 1

Sum of angles of a triangle is 180°.

So, by above we have 

85° + (x+53)° + (x+ 58)° = 180° 

2x + 196 = 180

2x = 180 - 196

2x = -16 

x = -8 

So, angle A = 53-8

                 =45° 

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