MathDB

1

Part of 1989 Cono Sur Olympiad

Problems(2)

Find x in Triangle

Source: Cono Sur Olympiad, Uruguay 1989, Problem#1

5/14/2006
Two isosceles triangles with sidelengths x,x,ax,x,a and x,x,bx,x,b (a≠ba \neq b) have equal areas. Find xx.
N is a square

Source: Cono Sur Olympiad, Uruguay 1989, Problem#4

5/14/2006
Let nn be square with 4 digits, such that all its digits are less than 6. If we add 1 to each digit the resulting number is another square. Find nn