are us dollars the same as australian dollars
Australian dollar In 2016, the Australian dollar was the fifth most traded currency in the world, accounting for 6.9% of the world's daily share (down from 8.6% in 2013).[4] It trades in the world foreign exchange markets behind the US dollar, the euro, the yen and the pound sterling.[5] The Australian dollar is popular with currency traders, because of the comparatively high interest rates in Australia, the relative freedom of the foreign exchange market from government intervention, the general stability of Australia's economy and political system, and the prevailing view that the Australian dollar offers diversification benefits in a portfolio containing the major world currencies, especially because of its greater exposure to Asian economies and the commodities cycle.[6] The currency is commonly referred to by foreign-exchange traders as the "Aussie dollar".
Dollar coin (United States) The dollar coin is a United States coin worth one United States dollar. It is the third largest American coin currently minted in terms of physical size, with a diameter of 1.043 inches (26.5 mm) and a thickness of .079 inches (2 mm), coming second to the half dollar. Dollar coins have been minted in the United States in gold, silver, and base metal versions. Dollar coins were first minted in the United States in 1794. The term silver dollar is often used for any large white metal coin issued by the United States with a face value of one dollar, whether or not it contains some of that metal. While true gold dollars are no longer minted, the Sacagawea and Presidential dollars are sometimes referred to as golden dollars due to their color.