Using ruler and compasses construct

(i) a triangle ABC in which AB = 5.5 cm, BC = 3.4 cm and CA = 4.9 cm.

(ii) the locus of points equidistant from A and C.

(iii) a circle touching AB at A and passing through C.

The locus of a point which moves in a plane in such a way that its distance from a fixed point is always constant, is known as :

1. a square

2. an equilateral triangle

3. a circle

4. a parallelogram

The locus of a point which is equidistant from two intersecting lines is the formed by the given lines.

1. pair of lines bisecting the angles

2. pair of parallel lines

3. pair of perpendicular lines

4. none of these

If A and B are two fixed points, then the locus of a point P such that ∠APB = 90°, is the:

1. square

2. rectangle

3. circle

4. rhombus