Question

Answer the question ​

Answer 1

Ok let's Add all angles

SOLUTION-

5x-20 +x+15 +2x+5 +x = 360

we know that sum of all quadrilater is 360de

therefore,

9x = 360

x = 360 / 9

x = 40

so, putting the value of x

5× 40 - 20 = 180

40 + 15 = 55

2 × 40 + 5 = 85

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Answer 2

Add them all

Then you will find that

9x = 360°

x = 360

___

9

x = 40°

Then put this value in all equation

《5 × 40 - 20 = 180°》

《40 + 15 = 55°》

《2 × 40 + 5 = 85°》

Hope this helps you