Equilateral Triangle: A triangle with all the sides of same length is called equilateral triangle. Isosceles Triangle: A three-sided polygon with at least two sides of the same length is called isosceles triangle. Scalene Triangle: A three-sided polygon with no sides of the same length is called scalene triangle.
Scientists Declare The Great Barrier Reef Dead At 25 Million Years. The Great Barrier Reef is considered Australiaâs national treasure as it once was filled with marine life, amazing coral reefs, and crystal clear waters. The incredible Coral Sea Wilderness has been declared dead by scientists at 25 million years old â ending its years of struggle and illness. However, locals claim that the reports of its demise have been exaggerated and there is plenty of life left in the worldâs largest barrier reef.
The Great Barrier Reef is the largest coral reef on Earth. A barrier reef is a long, narrow coral formation that lies parallel to the shoreline of a landmass and is mostly underwater. The Great Barrier Reef is in the Coral Sea, off the northeastern coast of Australia. It extends 1,250 miles (2,000 kilometers) from north to south. In the Coral Sea, off the coast of Queensland, Australia, lies the Great Barrier Reef, one of the natural wonders of the world. A barrier reef is a long, narrow, mostly submerged coral formation that lies parallel to the shoreline of a landmass.