Respuesta :

luisejr77

Answer: 50 degrees.

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees. Then, you can find the missing angle "x" of the larger triangle (Observe the figure attached):

[tex]53\°+45\°+x=180\°\\x=180\°-53\°-45\°\\x=82\°[/tex]

We know that:

[tex]x+y+68\°=180\°[/tex]

Then, "y" you need to substitute values and solve for "y":

[tex]y=180\°-68\°-82\°=30\°[/tex]

Then the angle ? is:

[tex]?=180\°-30\°-100\°\\?=50\°[/tex]

Ver imagen luisejr77
kudzordzifrancis

ANSWER

?=50°

EXPLANATION

From the diagram,

x+45+53=180

x+98=180

x=180-98

x=82°

Using angles on a straight line property,

x+68+y=180

82+68+y=180

150+y=180

y=180-150

y=30°

Using the sum of interior angles of the triangle,

?+y+100=180

?+30+100=180

?+130=180

?=180-130

?=50°

Ver imagen kudzordzifrancis