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Solving for Exterior Angle Measures What is the measure of ∠ABD?

Solving for Exterior Angle Measures What is the measure of ∠ABD?
asked 146k views
4 votes
Solving for Exterior Angle Measures
What is the measure of ∠ABD?

Solving for Exterior Angle Measures What is the measure of ∠ABD?-example-1
asked
User Lfjeff
by
7.5k points

2 Answers

3 votes

Answer:

114 is correct !

Explanation:

I got this problem right on my assignment.

answered
User Mark Rogers
by
8.2k points
5 votes
(4n + 6)° = (2n)° + 60° [since external angle is equal to sum of two internal angles]

(4n + 6)° = (2n)° + 60°
4n - 2n = 60 - 6
2n = 54
n = 27

Since n = 27 and ∡ ABD = (4n + 6)°

∡ ABD = [4(27) + 6]°
= (108 + 6) °
= 114°
answered
User Binish
by
8.7k points
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