Question

In the figure AD parallel to BC and P and Q are midpoints of AB and CD respectively .If AD =10cm, BC=20cm,then PQ =___________ *

option

1. 10cm

2. 15cm

3. 20cm

4. 25​

Answer 1

Step-by-step explanation:

Answer :

c

Solution :

(i) Draw lines parallel to AD and BD passing through C and D respectively cutting AB at E (say). AECD and EBCD would be parallelogram. <br> (ii) Draw lins throug D and C parallel to BC and AD. Cutting AB at M and N respectively such that ANCD and MBCD form parallelograms. <br> (iii) Triangles ADM and CBN form equilateral triangles, using these results find the required angle.