Diamond side

The diagonals of the diamond are 18 cm and 14 cm long. Calculate the length of the diamond side.

Correct answer:

a =  11.4018 cm

Step-by-step explanation:

u1=18 u2=14 a=(u1/2)2+(u2/2)2=(18/2)2+(14/2)2=130=11.4018 cm

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