Answer:
The perimeter is 220 , the area should be 100 ,
Step-by-step explanation:The perimeter of the square is 40 because it’s all sides added together & they are all even - The perimeter of a circle is always 360 and this is half of a circle so that is a perimeter of 180; you add that to 40=220. The area is two sides multiplied together=100 for the square. You find the area of the half circle by doing the area of a circle divided by 2.
<span>5a-25
= 5(a-5)
----------------------</span>
Answer:
4
Step-by-step explanation:
-2/9(2×-9)
-2/9(-18)
(-2×-18)/9
-2×-2
4
The formula is pi*r^2*h/3
your answer would have to be B