Answer:K=10
Step-by-step explanation:
When I multiply 4 times 10+(5)=45
When I multiply 6 times 10 + 10=70
So when I add them together (45+70)=115
Answer:
10
Exterior angle = sum of interior angles
115 = (4k + 5) + (6k + 10)
115 = 10k + 15
100 = 10k
k = 10
