Answer:


Step-by-step explanation:
a. Area is calculated by summing the areas of the prism's individual surfaces.
#First, calculate the areas of the right-angled surfaces:

#We then find the areas of the rectangular surfaces:

#We sum the areas to find the total surface areas:

Hence, the prism's surface area is 
b.Area is calculated by summing the areas of the prism's individual surfaces.
#First, calculate the areas of the right-angled surfaces:

#We then find the areas of the rectangular surfaces:

#We sum the areas to find the total surface areas:

Hence, the prism's surface area is 
Answer:351.9
Step-by-step explanation:351.9 cm3
V = πr2h
V = π(4)2(7)
V = π(16)(7)
V = 112π
V = 351.858
Answer:
#1 is B
Step-by-step explanation:
I think this is correct because iv done that many times before
Answer:
If it's perimeter, then its 23. If it's multiplying, then it's 810.
Step-by-step explanation: Please brainliest if possible!