Question

What is the value of K?
answers needed immediately please and thank you.

Answer 1

Answer: k = 10

because ∠MYZ is the outer angle of the triangle XYZ

=> ∠MYZ = ∠YZX + ∠YXZ

⇔ 115° = (4k + 5)° + (6k + 10)°

⇔ 115 = 10k + 15

⇔ 10k = 100

⇔ k = 10

Explanation: