In the given figure, AD = 4 cm, AB = 12 cm, AC = 18 cm and ∠ADE = ∠ABC, then CE is equal to :

1. 6 cm

2. 9 cm

3. 4 cm

4. 12 cm

A hard card-board is cut in the shape as shown alongside. It is given a full round about its line of symmetry (shown by the dotted line). The solid so formed has :

(i) One cone and one cylinder

(ii) Two cones and one cylinder

(iii) One cone and two cylinders.

Which of the statements given above is true ?

1. only (i)

2. only (ii)

3. only (iii)

4. (ii) and (iii)

If the opposite sides of a quadrilateral are equal but the diagonals are not equal, the quadrilateral is :

1. a rectangle

2. a parallelogram

3. a trapezium

4. a square

Tangents PA and PB are drawn from an exterior point P. A and B lie on the circumference of the circle. If angle APB = 60°, the triangle PAB is :

1. isosceles

2. isosceles right angled

3. equilateral

4. right angled