Answer:
The measure of ∠ KOJ = 53°
Explanation:
Vertically Opposite Angles:
When two line intersect each other two pair angles are formed then angle opposite to each other are equal.
Vertically opposite angles are equal.
∴ m ∠ KOJ = m ∠ LOM

substituting x in m ∠ KOJ we get
m ∠ KOJ = ( 4x + 5)
= 4 × 12 + 5
= 48 + 5
= 53°
∴ m ∠ KOJ = 53°