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CBSE Class 9 Answered

what will be the soluton
Asked by Pandeyo | 14 Sep, 2008, 02:57: PM
answered-by-expert Expert Answer

As Δs ABC',BCA',and CAB' are equilateral. Let each side measure x.

Join AA'. We have a straight line that cuts BC at D(say).

By symmetry arument,  AD is the altitude from A to D, and consequently, D is the mid point.

AD=x 30.5 /2 =DA'

AA'=AD+DA'= x 30.5

Similarily:BB'=CC'=x 30.5

Hence :

AA'=BB'=CC'

Answered by | 15 Jun, 2009, 12:25: AM

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