Question

In traingle ABC, the coordinates of vertex A are (0, -1) and D (1,0) and E (0,1) respectively the mid-points of the sides AB and AC. If F is the mid-point of side BC, find the area of traingle DEF.
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Answer 1

Step-by-step explanation:

Points P(6, ‑2), Q(‑3, 2), S(6, ‑7) are the vertices of a square PQRS. Plot these points on a graph paper and hence find the coordinates of the vertex R