Answer:
organ system
Step-by-step explanation:
Cells make up tissues, tissues make up organs, and organs make up organ systems.
Area of the trapezoid=
1/2(b1+b2)×2
A=1/2(8+11)×12
A=1/2(19)×12
A=6×19
A=114 square meters. As a result, the area of the courtyard is 114 square meters. Hope it help!