Answer:
A=50.24
Step-by-step explanation:
Your diameter is 8, which makes the radius 4.
The area of a circle is

A=50.24
Answer:
B or the third option you put.
Step-by-step explanation:
-6z = 72
Divide both sides by -6
-6z = 72
/-6 /-6
z = -12
<h2>Hey there! </h2>
<h3>The answer is: </h3>
<h3>Option 'B' </h3>

<h2>BECAUSE root 19 is irrational. </h2>
<h2>Hope it help you </h2>
Step-by-step explanation:
we know ,
area of circle =πr^2
hence we get from the figure that the diameter of circle is 19 cm and we can find radius
r=d/2
r=18/2=9cm
area of semicircle =πr^2/2
area of Semi circle equals to =22*(9)^2/7/2
=127.2857143