The western coast of Africa is referred to as the Gold Coast and the Ivory Coast due to their historical involvement in gold and ivory trade.
Step-by-step explanation:
The western coast of Africa is referred to as the Gold Coast and the Ivory Coast. The term 'Gold Coast' was used during colonial times to refer to the coastal area of Ghana, which had a thriving trade in gold. Similarly, the country of Ivory Coast (Côte d'Ivoire) got its name from its participation in the elephant ivory trade.