Answer:
3).

4).
If it was by 10, k = 3 by 10
k = 30
5).

Answer:
exterior angle = 36°
Step-by-step explanation:
In any polygon
exterior angle + interior angle = 180°
let x be the exterior angle then interior angle is 4x , then
x + 4x = 180
5x = 180 ( divide both sides by 5 )
x = 36
thus exterior angle = 36°
Answer:
Step-by-step explanation:
They are different numbers:
0.269 + 50.9 = 51.169
0.26 + 50.9 = 51.16