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Question 9 options:
The angle measures of triangle LMN are given:

The measure of angle L is (5x−10)° .
The measure of angle M is 30°.
The measure of angle N is (11x)° .


What is the value of x?

Respuesta :

Answer:

x = 10 degree

Step-by-step explanation:

Since the sum of the angles of a triangle is 180 degree, you can establish this equation:

180 = 5x-10 + 30 + 11x

180 = 5x + 11x - 10 + 30

180 = 16x + 20

180 - 20 = 16x

160 = 16x

x = 10

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