the area of a rhombus is 90cm2. if the length of a diagnal is 18cm,calculate the length of the other diagnol.
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Area of the rhombus = d1*d2/2
90cm= 18/2*d/2
90= 9*d/2
90/9= d/2
10= d/2
10*2= d
20= d
The length of the other diagonal is 20cm
90cm= 18/2*d/2
90= 9*d/2
90/9= d/2
10= d/2
10*2= d
20= d
The length of the other diagonal is 20cm
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