True or False:
A bar of given length moves with its extremities on two fixed straight lines are at right angles. Then a fixed point on the bar describes an ellipse.

If the extremities of a line segment of length l moves in two fixed perpendicular straight lines, then the locus of the point which divides this line segment in the ratio 1 : 2 is-

If 3a + 2b + 6c = 0 the family of straight lines ax+by = c = 0 passes through a fixed point . Find the coordinates of fixed point .

An ellipse slides between two perpendicular straight lines. Then identify the locus of its center.

An ellipse slides between two perpendicular straight lines. Then identify the locus of its center.

A double ordinate of the parabola y^2=4ax is of length 8a. Prove that the lines from the Vertex to its two ends are at right angles.

Two of the straight lines given by 3x^3 +3x^2y-3xy^2+dy^3=0 are at right angles , if d equal to

State whether true or false If transversal markes equal corresponding angles with two given lines then the two lines parallel

State true or false: A right angled triangle may have only one line of symmetry.