Question

One of the exterior angles of a triangle is 100 degrees and the interior opposite angles are in the ratio 2:3. Find all the angles of the triangle

Answer 1

the exterior angle is 100°
so the rule was applied that , if a side of a triangle is produced the exterior angles so formed is equal to the sum of interior opposite angle

so 2:3

2x+3x=100

5x=100
x= 20


2x= 40
3x=60

third angle found by liner pairs
180=100-z
z =80

first :40
second:60
third:80

Answer 2

Answer:

ok..................