1. ABC is an isosceles triangle with AB = AC. The side BA is produced to D such that AB = AD. If ABC = 30°, then BCD is equal to

60°

45°

90°

30°

2. ABCD is a trapezium in which AB | | DC and AB = 2CD. The diagonals AC and BD meet at O. The ratio of areas of triangles AOB and COD is

1 : 4

1: 2

1: √2

4: 1

3. PQ is a chord of length 8 cm, of a circle with centre O and of radius 5 cm. The tangents at P and Q intersect at a point T. The length of TP is

15/4 cm

20/3 cm

21/4 cm

10/3 cm

4. The area of the triangle formed by the graphs of 3x + 4 y = 12, x-axis and y-axis (in sq. units) is

8

12

4

6

5. The side QR of an equilateral triangle PQR is produced to the point S in such a way that QR = RS and P is joined to S. Then the measure of PSR is

45°

30°

15°

60°

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