Circumference 8771

Calculate a diamond's area with a circumference of 51.2 cm and a height of 9.6 cm.

Correct answer:

S =  122.88 cm2

Step-by-step explanation:

o=51.2 cm v=9.6 cm  o= 4a a=o/4=51.2/4=564=12.8 cm  S=a v=12.8 9.6=122.88 cm2

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