The indian ocean facilitates connections between the eastern coast of africa and:

Western coast of Australia

Explanation:

The Indian Ocean is the third largest ocean on the planet. It is located on both the Northern and Southern hemispheres. This ocean is located between Africa, Asia, and Australia, as well as the Southern Ocean. Africa is its western border, Asia its northern border, Australia the eastern border, and the Southern Ocean its southern border. This ocean facilitates connections between the western coast of Africa and the eastern coast of Australia, enabling much easier, cheaper, and quicker movement of goods, ideas, technology, and people between the two continents.