Answer:
a. Radius of DA - 2 cm.
b. Area of rectangle ABCD -
c. Area of shaded - 8-4π
d. Perimeter of shaded region - also 8-4π
<em><u>Hope this helps! </u></em>
It appears as if 12cm is half the length of the side so we can assume that the total length of one side is 24cm.
The area of a square is given by the equation
where s is the length of the side.

A=576
The area of this square is 576cm2.
Hope this helps!
Answer:
y=2
Step-by-step explanation:
Answer:
74
Step-by-step explanation:
take 32 and subtract from 180 degrees... then divide that by 2
Fraction = 3/7
decimal = approximately 0.429
percentage = approximately 42.86%