avaa4828 avaa4828

02-03-2021
Mathematics

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can someone help me with these 2 questions. angle sum theorem

can someone help me with these 2 questions angle sum theorem class=

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desaniamiya101 desaniamiya101

02-03-2021

Answer: D. 8

Step-by-step explanation:

Total sum of angles in a triangle is 180

I'll do the first one, you can try the second

9x + 5 + 78 + 25 = 180

9x + 108 = 180

9x = 72

x = 8

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