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13. A rectangular field is 127 m long and 48 m wide.How many triangular flower beds, with sides10 m, 10 m and 12 m, can be laid in this field?しーー - |
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Answer» For this first find area for both the shapesHence,Area of rectangular field is l*b=127*48=6096m^2Area of triangular flower beds=using herons formula √s(s-a)(s-b)(s-c)s=10+10+12/2=16mhencearea will be √16(16-10)(16-10)(16-12)=√16*6*6*4=4*6*2=48m^2henceNo of flower beds=6096/48=127beds |
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