What is the area of the semi circle of 12

56.57

Step-by-step explanation:

πr2

2

=

22

7

⋅(6)2

2

=56.57

Hi there!

The correct answer to this question is: 56.55

Step-by-step explanation:

A semicircle is another way of saying half a circle, if we know the area of a circle is A= π * r^2   then all we have to do is take this equation and divide it by  two to get the area of a semicircle. Additionally since we are given the diameter we need to divide that by 2 to get the radius which is six.

Now we can plug all the components into the equation: A= (1/2)(π)(6^2)

you get 56.55

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation: