In a △PQR, ∠Q = 50°, ∠R = 65° and QR = 4 cm. Then PQ =

1. 6 cm

2. 5 cm

3. 4 cm

4. 3 cm

In the adjoining figure, ∠ABC = 90°, ∠BCA = 50° and BD ⊥ AC. Then ∠ABD =

1. 30°

2. 40°

3. 50°

4. 60°

In the adjoining figure, AB = AC, BD = CD, ∠BAD = 32°, ∠BDC = 56°, ∠CAD = 2x° and ∠BDA = (x + y)°. The values of x and y will be :

1. x = 10, y = 16

2. x = 16, y = 12

3. x = 18, y = 8

4. x = 12, y = 16

In the figure, AB = AC and DB = DC. ∠ABD : ∠ACD is :

1. 1 : 2

2. 2 : 1

3. 1 : 1

4. 1 : 3