## Exam Style Question## Worked solutions to typical exam type questions that you can reveal gradually |

Question id: 177. This question is similar to one that appeared in a GCSE Higher paper (specimen) for 2017. The use of a calculator is not allowed.

ABCD is a quadrilateral. The points E, F, G and H are the midpoints of the sides of this quadrilateral.

$$\vec{CH} = a, \vec{DG} = b \text{ and } \vec{DF} = c$$Show that HG is parallel to EF.

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