Answer:88
Step-by-step explanation:
Area of a circle: πr²
Data:
diameter: 21 cm
radius=diameter/2=21 cm/2=10.5 cm
area of this circle: π(10.5 cm)²=110.25π cm² (≈346.36 cm²)
Answer: area=110.25π cm²
Answer:
Step-by-step explanation:
A positive times a negative will always be negative
9 x -1 = -9
-9, Hope this helps!
