The area of a rectangular carpet is 120 m square and its perimeter is 46 m. What is the length of its diagonal?
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perimeter= 2(L+B)=46
L+B=23.....(1)
Area= L*B=120
L*B=120
L=120/B
put L in (1)
120/B + B = 23
120+B²=23B
B²-23B+120=0
L+B=23.....(1)
Area= L*B=120
L*B=120
L=120/B
put L in (1)
120/B + B = 23
120+B²=23B
B²-23B+120=0
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