Answer:
see explanation
Step-by-step explanation:
∠RHC = 145° ( given )
∠JHK = 145° ( vertical to ∠RHC )
∠RHJ = 180° - 145° = 35° ( straight angle )
∠CHK = 35° ( vertical or straight )
∠HKS = 35° ( alternate to ∠CHK )
∠SKU = 145° ( straight angle )
∠OKU = 35° ( vertical or straight )
∠HKO = 145° (vertical to ∠SKU )
