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24-06-2021
Mathematics

contestada

m
(2y+19)
(5x+20)
n
(4x-11)

m 2y19 5x20 n 4x11 class=

Respuesta :

Аноним Аноним

30-06-2021

Answer:

(5x+20)+(4x-11)=180(linear pair)

9x+9=180

9x=180-9

9x=171

x=171/9

x=19

now,

(2y+19)+(5x+20)=180(co-interior angle)

2y+19+5×19+20=180

2y+134=180

2y=180

y=180/2

y=90

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