Question

given figure
Mount
13 and
5x
하​

Answer 1

Answer:

we know that sum of interior angle of triangle is 180

so,

= let 1= x and 2= x

=x +x+58=180

2x =180 -58

2x= 122

x= 122÷2

×= 61 answer

sum of exterior angle angle 3= 61 +58 =180

=129