A. The figure given in A is a square pyramid and the
formula for the surface area of this figure is:
A = l w + l sqrt [(w/2)^2 + h^2] + w sqrt [(l/2)^2 + h^2]
where l and w are the lengths of the base and h is the
height of the pyramid. Since the base is square, so:
l = w = 16 in
h = 15 in
Substituting:
A = 16 * 16 + 16 sqrt [(16/2)^2 +15^2] + 16 sqrt [(16/2)^2
+ 15^2]
A = 256 + 272 + 272
A = 800 in^2
B. We are given a cone, the formula for surface area is:
A = πr (r + h^2 + r^2)
where h is the height = 8 in and r is the radius = 3 in
Substituting:
A = π * 3 (3 + sqrt (8^2 + 3^2))
A = 34.63π in^2 = 108.80 in^2
Answer:
360 are Norway Spruce.
Step-by-step explanation:
n/480 = 75%/100
480•75%=36,000
36,000/100
360
Answer:
3 4/5
Step-by-step explanation:
divide 19 by 5 which gets you that as a decimal
She traveled 11 floors.
Explanation:
Wanda stepped onto an elevator at the 8th floor after that comes the 7th floor, 6th floor, 5th floor, 4th floor, 3rd floor, 2nd floor, 1st floor and then ground floor . Hence from 8th floor to ground floor Wanda traveled 8 floors. After ground floor she travels 3 floors more that is -1,-2,-3 . Hence here she travels 3 floors underground. Therefore, the total number of floors traveled by Wanda are 8 floors+3 floors= 11 floors.
