Answer: 
Step-by-step explanation:
You need to use the following formula:

Where "r" is the radius and
is is the central angle of the arc in radians.
Assuming that that the angle
is the central angle of the arc, and knowing that the radius is 7 centimeters, you can substitute values into the formula.
Therefore, you get:

Answer:
D
Step-by-step explanation:
There was actually too much work for this on my paper so I can't really show it, but if you can memorize this parent function I would.
Answer:
Step-by-step explanation:
Red points: Rain Forest
Blue points: Farmland
I hope I've helped you.
Answer:
13.73 sq mm
Step-by-step explanation:
Area of Square - Area of Circle = Area of Shaded Region
if radius of circle is 4 then diameter is 8
the diameter is the same as the length of each side of the square
so area of square = 8² or 64
Area of Circle = 16π
64 - 16π ≈ 13.73
Answer:
Step-by-step explanation: