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5. Sides of a triangle are in the ratio of 12: 17:25 and itsperimeter is 540cm. Find its area |
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Answer» let the common ratio be xthen sides are 12x 17x and 25x perimeter of the triangle =540cm 12x+17x+25x=540cm =54x =540cm=x=10 sides of triangle are 12 x =12'×10=120 17×10=170 25×10 =250 semi perimeter of triangle 540/2= 270 area of the triangle =square s(s-a)(s_b) (s_c) square 270(270_120)(270_170) and (270_250)×150×100×20cm2=9000cm2 |
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