Answer:
201.1 km²
Step-by-step explanation:
Surface area of the figure,
4πr²
= 4×π×4²
= 64π
= 201.1 km² (rounded to the nearest tenth)
Answer:
43.3cm
Step-by-step explanation:
Circumference = PI * diameter.
Circumference = PI * 13.8
Circumference = 43.3cm
Answer:
13.32cm squared
Step-by-step explanation:
Area of triangle is B X H X0.5
The length around the circle is called the circumference, the length aross the circle is the diameter and half of that is called the radius.
