Find the area of a circle with a radius of 2. Either enter an exact answer in terms of ar or use 3.14 for and enter your answer as a decimal.

Answer

12.5663706

Step-by-step explanation:

if r=2

the equation for area of circle is 2pier

plug in r and you get 2pi2

mulitply it is 12.5663706 or 4pi.

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step-by-step explanation

2r= 2300

r =1150

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b