10. The area of rhombus is 120 cm' and one of its diagonals is 12 cm then the other diagonal is
A. Som
• B. 10 cm
C. 20 cm D. 12 cm
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Answer:
area of rhombus=1/2*2 diagonals
120=1/2*12*diagonal 2
120*2/12=diagonal 2
diagonal 2=20cm
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