sgeary090737 sgeary090737

03-12-2020
Mathematics

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In triangle JKL what is the value of x° if JK = KL

A) 38°
B) 60°
C) 69°
D) 71°

In triangle JKL what is the value of x if JK KL A 38 B 60 C 69 D 71 class=

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JennyTheBest813 JennyTheBest813

03-12-2020

Answer:

A: 38º

Step-by-step explanation:

Triangle JKL is an isosceles triangle as JK=KL:

That means ∠J=∠L=71º
The sum of a triangle's interior angles is 180º, so ∠K=180º-∠J-∠L. We know ∠J=∠L=71º, so ∠K=180º-71º-71º=38

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