aubrey0128
aubrey0128
21-12-2019
Mathematics
contestada
USLUIT il
Find x.
45°
30°
Respuesta :
NoonElsadig
NoonElsadig
21-12-2019
Answer:
111°
Step-by-step explanation:
All these are parallel lines, so the 36° angle is equal to the 36° angle inside the big triangle because they are
vertically opposite.
Ignore the line cutting between 45° and the 30° and consider it as one triangle
Add them to get
7
5
°
Now you have two known angles
7
5
°
and
3
6
°
To get angle
x
add 75° and 36° to get 111°
Because x° is an exterior angle and exterior angles equal to the sum of interior angles opposite it inside the triangle.
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