- Nadezhda Konstantinova
Given an isosceles triangle ABC with a leg 12 cm, an altitude to the base 8 cm. Find the radius of circumscribed circle (R)
Given an inscribed quadrilateral ABCD, AB=19 cm, BC=7 cm, CD=15 cm, AD=21 cm. The extensions of AB and CD intersect each other in point M. Find MB and MC.
Given ABC with a base 13 cm, the distance between the centroid G and the altitude CH to the base is 2 cm. Find AH and HB.
Given ABC with an altitude CH, AH=4 cm, HB=16 cm. Find the distance between the centroid G and the altitude CH