litsparks litsparks

03-09-2020
Mathematics

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Find the value of x in each case: b)

I will give 20 Brainly points if answered within 30 minutes!!!!!!

Find the value of x in each case bI will give 20 Brainly points if answered within 30 minutes class=

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tom1001cr tom1001cr

03-09-2020

Answer:

15 DEGREES

Step-by-step explanation:

OK SO BASICALLY, USING THE EXTERIOR ANGLES THEOREM, YOU FIND THAT 9x = 5x + something. That something is 4x so:

9x = 5x + 4x

THEN YOU FIND THAT 8x = 5x + something. That something is 3x so:

8x = 5x + 3x

4x and 3x and 5x are the interior angles of the triangle (ABC)

Then you use triangle theorem and get 4x + 3x + 5x = 180

Then: 12x = 180 and so you get x = 15

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