Online Geometry

Ten Geometry Problems 81-90. Level: High School, College

Ten Geometry problems 81-90



Geometry Problems 81 - 90

Geometry Problem 81-90


Triangle area

Proposed Problem 81. Area of a triangle, side, inradius, circumradius.

Contact triangle area

Proposed Problem 82. Area of the Contact Triangle, inradius, circumradius.

Proposed Problem 83. Area of the Excircle Contact Triangle, exradius, circumradius.

Proposed Problem 84. Contact Triangles Areas, Incircle, Excircle, Inradius, Exradius.

Proposed Problem 85. Contact Triangles Areas, Incircle, Excircle.

Proposed Problem 86. Intouch and Extouch Triangles, Areas.

Quadrilateral area problem

Proposed Problem 87. Area of Quadrilaterals and Midpoints of Diagonals.

Math problem

Proposed Problem 88. Triangle and Quadrilateral Areas, Midpoints.

Math problem

Proposed Problem 89. Triangles of equal area, Midpoints.

Geometry problem

Proposed Problem 90. Quadrilateral and Triangle Areas, Midpoints.

Geometry Problems 91-100

Geometry Problems 71-80


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