CBSE Class 9 Answered
plz solve the follwing qustion!!! urgent..
Asked by manav.dhiman | 17 Jul, 2009, 07:37: PM
Expert Answer
since the tile is triangular, the area of of the triangle with sides 9,28,35 can be obtained by heros formula
A =s(s-a)(s-b)(s-c) where s=a+b+c/2
A =36(27)(8)(1)
A =9x4x6
A =366 sq.cm this is area of one triangle therefore area of 16 triangles =5766 sq.cm The cost of polishing this area =50 x5766 =288006 paise =70560 paise approx (the value of 6=2.45app)
Answered by | 18 Jul, 2009, 08:22: PM
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