more ... Two Angles are Supplementary when they add up to 180 degrees. They don't have to be next to each other, just so long as the total is 180 degrees. Examples: 60Â° and 120Â° are supplementary angles. 93Â° and 87Â° are supplementary angles.
The colonies had grown vastly in economic strength and cultural attainment, and virtually all had long years of self-government behind them. In the 1760s their combined population exceeded 1,500,000 -- a sixfold increase since 1700.
British form an alliance with patriots' slaves. The British governor of Virginia, Lord Dunmore, issues a proclamation offering freedom to any slaves of rebellious Americans who are able to enter British lines. Throughout the course of the war, tens of thousands of African Americans will seek their freedom by supporting the British.