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Prove:(2,-2),(8,4),(5,7)&(-1,1) are the angular points of a rectangle
Prove:(2,-2),(8,4),(5,7)&(-1,1) are the angular points of a rectangle

```
3 years ago

Arun
25768 Points
```							Let these points are A,B,C,D respectively.HenceFrom distance formuladistance AB =52^(1/2)distance CD = 52 ^(1/2)distance BC = 18^(1/2)distance AD = 18^(1/2)Now AB = CD & BC = ADOne property of rectangle is that its disgonal are equal in length.Now length AC = 90^(1/2)length BD = 90^(1/2)Now AC = BD also.Hence this is a rectangle
```
3 years ago
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• 53 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions