ANSWER
A=16
EXPLANATION
The radius of the circle is r=4 units.
The area of a triangle is

Both the height and the base of the triangle are radii, which is 4 units.
The area of the two isosceles right triangle is

Answer:
≈ 
Step-by-step explanation:
Area of Circle:
π 
π 
π (16)
≈ 
Area of Square:


Area of each corner:

13.73 ÷ 4 ≈ 
Area of Red:
≈ 
Answer:
-96
Step-by-step explanation:
In order to get the opposite of an integer, you just need to change its signal. So, the opposite of 96 is -96. If you add the opposite or additive inverse of the number to the number itself the result will be 0.
So, 96 plus -96 = zero.
Answer:
2., an irrational number
Step-by-step explanation: