CBSE Class 9 Answered
In figure, ABC is an equilateral triangle with co-ordinate of B and C as (1,0), (5,0). Find the co-ordinate of vertex A.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
In equilateral triangle ABC,
BC = 4 unit, AC = 4 unit, AB = 4 unit
Drop a perpendicular from A to x-axis.
AP2 = AB2 - BP2
= (4)2 - (2)2
= 16 - 4 = 12
AP =
So co-ordinates of A are
Answered by | 04 Jun, 2014, 03:23: PM
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