Hello from MrBillDoesMath!
Answer:
70.1 cm^2
Discussion:
Area of a rhombus =
(length of side ) ^2 * sin (angle between sides) =
9^2 * sin(60) = 81 * ( .866) = 70.1 ( to the nearest tenth)
Regards,
MrB
P.S. I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!