Respuesta :

yvonnewillemann

Hello!

110+ 130 +x+x-3 =360

240 + 2x -3 = 360

2x= 360 - 240 +3

2x =123

x= 123/2 => 61,5°

(x-3)° = 61,5 -3 => 58,5°

jaysnomhlekhabo

Answer:

110+130+x+(x-30)=360° .....angles of a quad...

240°+x+x-30°=360°

240°-30°+2x=360°

210°+ 2x=360°

2x=360°-210°

2x=150°÷2

x=75°....

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