Question

class 9 maths please answer

Answer 1

Answer:

50° is the correct answer

Answer 2

Answer:

x = 50'

Step-by-step explanation:

Using Linear pair => <EBD + < DBC + <CBF = 180'

Inserting values...

=> (x+3) + (x+20) + (x+7) = 180'

Opening Brackets

=> 3x + 3 + 20 +7 = 180'

= 3x = 180 - 30

= x = 150/3

x=50'

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