

Geometry Problems  Table of
Content (Page 19 of 40)


Geometry Problems  Page 19




Proposed Problem 426.
Triangle, Circumradius, Circumcenter, concurrent Cevians. 

Euclid's Elements Book I, Proposition 4: (SideAngleSide SAS) 

Proposed Problem 425.
Quadrilateral, Triangle, Angles, 10, 20, 50 degrees, Congruence. 

Proposed Problem 424.
Triangle, Cevian, Angle, 90 degree, Congruence. 

Proposed Problem 423.
Triangle, 30, 40 degree, Angle, Congruence. 

Proposed
Problem 422.
Triangle, 24, 30 degree, Angle, Congruence. 

Proposed Problem 421.
Right Triangle, Cevian, Angles, Measurement. 

Euclid's Elements Book I, Proposition 3: Given two unequal straight
lines, to cut off from the greater a straight line equal to the less 

Euclid's Elements Book I, Proposition 2: To place at a given point (as
an extremity) a straight line equal to a given straight line 

Euclid's Elements Book I, Proposition 1: On a given finite line to
construct an equilateral triangle 

Proposed Problem 420.
Triangle, Altitude, Angles, Sides, Measurement. 

Proposed Problem 419.
Triangle, Cevian, Incircle, Excircle, Inradius, Exradius. 

Proposed Problem 418.
Triangle, Incircle, Inradius, Equal Tangent circles, Radius. 

Proposed Problem
417.
Tangent circles, Tangent lines, Angles. 

Routh's Theorem 1.
Triangle, Cevians, Ratio of Areas. 

Routh's Theorem 2.
Triangle, Cevians, Ratio of Areas. 

Routh's Theorem 3.
Triangle, Cevians, Ratio of Areas. 

Routh's Theorem 4.
Triangle, Cevians, Ratio of Areas. 

Proposed
Problem 416.
Triangle, Cevians, Trisectors, Area. 


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