If the perimeter of the diamond is 24 & nbsp; cm and an inner angle is 60 °, the area of the diamond is 40______ cm2.

If the perimeter of the diamond is 24 & nbsp; cm and an inner angle is 60 °, the area of the diamond is 40______ cm2.

If the perimeter of the diamond is 24 & nbsp; cm, the side length is 6cm, and the height of 60 ° is 32 × 6 = 33cm, then the area of the diamond is 6 × 33 = 183cm2