Geometry Problems 1171-1180. Level: High School, College

Geometry Problems 1171 - 1180

Geometry Problem 1171
Area of a Triangle in terms of the three altitude or heights h_a, h_b, h_c.

Geometry Problem 1172
Cyclic Quadrilateral, Circle, Secant, Triangle, Similarity, Metric Relations.

Geometry Problem 1173
Triangle, Cevian, Angle, Congruence, Similarity.

Geometry Problem 1174
Triangle, Quadrilateral, Double, Triple, Angle, Congruence, Excenter, Angle Bisector.

Geometry Problem 1175: Six Tangential or Circumscribed Quadrilaterals Theorem

Art and typography of Geometry Problem 1175: Six Tangential Quadrilaterals.

Geometry Problem 1176
Cyclic Quadrilateral, Diagonals, Six Diameters, Circles, Collinear Points, Concurrent Lines.

Geometry Problem 1177
Triangle, Two Angle Bisectors, Metric Relations.

Geometry Problem 1178
Triangle, Angle Bisector, Metric Relations.

Geometry Problem 1179
Triangle, Centroid, Transversal, Sum of Ratios, Sides.

Art and Typography of Geometry Problem 1179.

Geometry Problem 1180
Quadrilateral, 120 Degrees, Diagonals, Perpendicular.