Answer:
Lateral surface area of the cylinder =
Step-by-step explanation:
Lateral surface area of he cylinder =
i.e area of side surface.


Lateral surface area of the cylinder =

L.S.A= 
L.S.A= 
The lateral surface area of the cylinder with radius 8 cm and height 5 cm is 
Let
be the area of the sector in the larger circle (radius 12 cm) whose central angle is subtended by the labeled arc with measure 45 deg, and let
be the area of the sector in the smaller circle (radius 8 cm) with the same central angle. The area you want is
.
We have


So the area of the shaded region is
.
Answer:137
Im not completely sure though!
Step-by-step explanation:
(a) Slope is rise over run, or change in y over change in x.
1 -> 3 (
)
2 -> 3 (
)
3 -> -1/3 (
)
(b) If a line is parallel, the slopes will be the same. If they are perpendicular, the slopes will be are negative reciprocals of one another. If they are neither, then their slopes don't match up in any way.
1 & 2 -> Parallel
1 & 3 -> Perpendicular
2 & 3 -> Perpendicular
Note - Since 1 & 2 are parallel, then both 1 and 2 will be perpendicular to 3!
Have a nice day!
If this is not what you are looking for - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather