hectorcgalvan hectorcgalvan

03-06-2020
Mathematics

contestada

i’m not sure if i’m right

im not sure if im right class=

Respuesta :

nolisbae nolisbae

03-06-2020

Answer:

A. 20

Step-by-step explanation:

To solve this you must know that the angles marked are vertical angles and are congruent. So, you should set them equal to each other

x+40=3x

you would subtract x from both sides

40=2x

and then divide 2 from both sides

20=x

hope this helped!

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