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.
Aerial views of The Great Barrier Reef are seen from above on August 7, 2009 in Cairns, Australia. GREAT BARRIER REEF, Australia A writer has declared the Great Barrier Reef in Australia officially dead after a story in September said that the bleaching of the reef's coral this year has caused it to decline. ABC News in Australia reported last month that bleaching had killed 35 percent of coral in the central and northern parts of the reef.