Usett =3.14 find the circumference and area of a circle d =7cm

area=38.465, circumference=21.98

Step-by-step explanation:

Divide the diameter by 2 to find the radius

7/2=3.5

Use the formula πr^2 find area

3.5*3.5=12.25

12.25*3.14=38.465

a=38.465

Then, use the formula 2πr to find circumference

2*3.14=6.28

6.28*3.5=21.98

c=21.98

i'm not entirely sure

step-by-step explanation:

if you ask home depot or lowe's they might be able to you out

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