x, y, z are integer that are side of an obtuse-angled triangle. If xy = 4, find z.
How many isosceles triangles with integer sides are possible such that sum of two of the side is 12?
Sides of a triangle are 6, 10 and x for what value of x is the area of the ? the maximum?
Perimeter of a ? with integer sides is equal to 15. How many such triangles are possible?