Answer:
The circumference is 98.39 centimeters (rounded to 2 decimal places)
Step-by-step explanation:
The area of a circle has the formula 
The circumference of a circle has the formula 
First, let's find r from area given:

Now, we can use this value of r and plug in into the formula for circumference. Shown below:

The circumference is 98.39 centimeters (rounded to 2 decimal places)
Answer:
Area of the figure = 109 cm. square
Step-by-step explanation:
The radius of the semi circle is 12 ÷ 2 = 6 cm.
Area of the semi circle = 
The radius of the quarter circle is 6 cm.
Area of the quarter circle = 
The area of the rectangle = 12 × 2 = 24
The area of the figure = 18π + 9π + 24 = 108.78 ≅ 109 cm. square
(^3-^2+2)D=0
D^2+D^2+2D=0
2D^2+2D=0
a = 2; b = 2; c = 0;
Δ = b2-4ac
Δ = 22-4·2·0
Δ = 4
D1=−b−Δ√2aD2=−b+Δ√2a
Δ−−√=4√=2
D1=−b−Δ√2a=−(2)−22∗2=−44=−1
D2=−b+Δ√2a=−(2)+22∗2=04=0
Fraction: 75/100
Decimal 0.75
Percentage: 75%