Q. 20. Prove that .
Sol.
Q. 21. Show that the points (3, 2), (0, 5), (– 3, 2) and (0, – 1) are the vertices of a square.
Sol. Let the points be A (3, 2), B (0, 5), C (– 3, 2) and D (0, – 1) Using distance formula
| Mathematics 2008 Question Papers Class X | |||||||
| Delhi | Outside Delhi | Compartment Delhi | Compartment Outside Delhi | ||||
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