Answer:
<h2>39.27 cm²</h2><h2 />
Step-by-step explanation:
area of semi circle = π r² / 2
where r = 10/2 = 5 cm
area = π (5)² / 2
= 39.27 cm²
Answer:
0.264 mm
Step-by-step explanation:
Number of sheets = 1000
Thickness of entire sheet = 264 mm
The thickness of the sheet is :
Thickness of entire sheet / number of sheets
264 mm / 1000
= 0.264 mm
Answer:
radians
Step-by-step explanation:
Arc length and radius is given. So, we need to know the arc length formula for a circle.
That is:
![s=r\theta](https://tex.z-dn.net/?f=s%3Dr%5Ctheta)
Where s is the arc length
r is the radius
is the angle (IN RADIANS)
We have:
s = 15.5
r = 9
Now, we substitute and find the angle:
![s=r\theta\\15.5=9\theta\\\theta=\frac{15.5}{9}\\\theta=1.72](https://tex.z-dn.net/?f=s%3Dr%5Ctheta%5C%5C15.5%3D9%5Ctheta%5C%5C%5Ctheta%3D%5Cfrac%7B15.5%7D%7B9%7D%5C%5C%5Ctheta%3D1.72)
The angle, in radians, in 1.72
Answer:
1,177.5
Step-by-step explanation:
I have not done this is a while but the formula is v = 3.14 r^2 h
so 3.14 x 5^2 x 15
then 3.14 x 25 x 15
lastly multiply it all to get 1,177.5
Hope this helps <3