Answer:
the surface area of the decoration is 31.5
Step-by-step explanation:
Look up math way and type it in its free and it will help alot.
T= 60°
It is an equilateral triangle which means all sides and angles are equal
u= 10m
It is an equilateral triangle which means all sides and angles are the same
When you add all the number together you get 364.6 round it = 365
Because 6 is > 5
