The area of the parallelogram PQRS is 16 sq. units. If M is the mid-point of PQ, then the area of ΔQMR is :

1. 16 sq. units

2. 8 sq. units

3. 4 sq. units

4. 2 sq. units

ABCD is a rectangle and ABQC is a parallelogram. If the area of ΔABD is 5 sq. cm, then the area of the parallelogram is :

1. 5 sq. cm

2. 10 sq. cm

3. 20 sq. cm

4. 30 sq. cm

Two diagonals of a parallelogram ABCD intersect at O. If the area of the parallelogram is 20 cm², then the area of ΔAOB is :

1. 20 cm²

2. 15 cm²

3. 10 cm²

4. 5 cm²

E is the mid-point of the side AB of a parallelogram ABCD. If the area of the ABCD is 60 sq. cm, then the area of ΔBDE is :

1. 60 sq. cm

2. 30 sq. cm

3. 15 sq. cm

4. 10 sq. cm