Find the area of the circle with a radius of 2 cm.
a 12.56 cm2
b 26.34 cm2
C 14.26 cm
d 32.12 cm2
GETAHINT

a 12.56 cm2

Step-by-step explanation:

area = πr² or I'd

step 1: substitute (plug in) for r which in here is 2

π(2)²

step 2: follow order of operations

(2)²= 4 *π= 12.56

P- parenthesis

E-exponent

MD- multiply and divide from left to right

AS- add and subtract from left to right

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.