question archive A) Determine the defect of a triangle in hyperbolic geometry whose angles measure 20, 34, and 420
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A) Determine the defect of a triangle in hyperbolic geometry whose angles measure 20, 34, and 420.
B) Determine the excess of a triangle in elliptic geometry whose angles measure 820, 910, and 120.
C) What can be said about the sum of the interior angles of a quadrilateral in the hyperbolic plane? Explain. (Use a fact about the sum of the interior angles of a triangle to support your conclusion.)