The sides of a triangle are `x^(2) + x + 1, 2 x + 1, and x^(2) -1`. Prove that the greatest angle is `120^(@)`

The sides of a triangle are x^2+x+1, 2x+1 and x^2-1. Prove that the greatest angle is 120^0

The sides of a triangle are x^2+x+1,2x+1,a n dx^2-1 . Prove that the greatest angle is 120^0dot

The sides of a triangle ABC are (x^(2) + x +1),(2x+1) and (x^(2)-1) . Find the greatest angle of the triangle.

The sides of a triangle containing the right angle are 5x cm and (3x-1) cm. If the area of the triangle is 60 cm^(2) , calculate the lengths of the sides of the triangle.

The angle of a triangle are in the ratio 1 : 2 : 7, prove that the ratio of the greatest side to the least side is (sqrt(5)+1):(sqrt(5)-1) .

The sides of an equilateral triangles are given by x+ 3y , 3x+ 2y - 2 and 4x + (1)/(2) y+ 1

The equation of the sides of a triangle are x+2y+1=0, 2x+y+2=0 and px+qy+1=0 and area of triangle is Delta .

Statement-1: lf the measures of two angles of a triangle are 45 ° and 60 °, then the ratio of the smallest and the greatest sides are (sqrt3-1) : 1 Statement-2: The greatest side of a triangle is opposite to its greatest angle.

The sides of a right angled triangle containing the right angle are 4x cm and (2x-1) cm. If the area of the triangle is 30cm^(2) calculate the lengths of its sides.

IF the tangents of the angles of a triangle are in A.P, prove that the squares of the sides are in the proportion x^2(x^2+9):(3+x^2)^2:9(1+x^2) where x is the least or the greates tangent.