Math, asked by keri105, 8 months ago

please give the answer of question 9

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Answered by ssaurabhkrishnan

0

Step-by-step explanation:

3x+4x+5x = 180 (angle sum ppty)

12x=180

x=15

3x=15*3=45

4x=15*4=60

5x=15*5=75

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