Respuesta :

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!