1 thought on “Q. 10In the figure, AD || BC and P and Q are midpoints of AB and CD respectively. If AD = 10 cm, BC = 20 cm, then PQ = ………”

Answer: 20cm

Step-by-step explanation: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.

Answer: 20cmStep-by-step explanation: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.