The diagonals

The diagonals in the diamond ABCD are 6 cm and 8 cm long. What is the perimeter of this diamond?

Correct answer:

o =  20 cm

Step-by-step explanation:

e=6 cm f=8 cm  a2 = (e/2)2+(f/2)2  a=(e/2)2+(f/2)2=(6/2)2+(8/2)2=5 cm  o=4 a=4 5=20 cm

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