Question

find the value of "x"

​

Answer 1

Answer:

x=67°

Step-by-step explanation:

Given,angles A=56°,B=x

let c=y

also given exterior angle at c as123°

we know that,

sum of interior and exterior angles of a side=180°

so,y+123°=180°

y=180°-123°

y=57°

also we know that ,

sum of angles in a triangle=180°

i.e.56°+x+57°=180°

x+113°=180°

x=180°-113°

x=67°

Answer 2

By exterior angle property,
56+x= 123
X= 123-56
X= 67