If a triangle is equilateral, then the 3 medians are of equal length. Conversely if 3 medians of a triangle are of equal length, then the triangle is equilateral, prove.
If a triangle is isosceles then the two median towards that equal sides are of equal length. Conversely if 2 medians of a triangle are equal in length, the triangle is isosceles. Prove.
two people, 7220 ft. apart, observe a balloonist flying overhead between them. their measures of the angles of elevation at 3:30pm are 35.6° and 58.2° respectively. what is the height of the balloonist above the ground?
Let ABC be a triangle,let D,E,F be points on BC,CA and AB such the AD,BE and CF are concurrent at the point K. Suppose BD/DC=BF/AF and angle ADB= angle AFC. Prove that angle ABE=angle CAD
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