Question

Please help!

Vilas is building a square pyramid for graduation. A. The pyramid will be made of chicken wire. How many sq. ft. of chicken wire will be needed?

B. It will cost $1.50 per square foot to cover it with carnations. How much will it cost to cover the pyramid. (The base of the pyramid will not be covered with the carnations.)

Answer 1

Assuming he is not building the base...

for A. find the Lateral Surface Area of the pyramid

Answer 2

S = L + B
S = πrl + πr2
S = π(6)(6) + π(8)
Like that? for A?

Answer 3

that formula is for cone

Answer 4

S= L+B...if he is building the base

if he isn't then just find L
(L) Lateral area = the sum of areas of all the triangle faces

here all the triangle faces are congruent... so calculate the area of one and multiply by 4

Answer 5

\[\Large L=\left( \frac12\cdot b \cdot l \right)\times 4\]

Answer 6

oh kk so it would be like
L= (1/2*6*8)*4=
right ???

Answer 7

then
L=(1/2*48) * 4
L= 96

Answer 8

right?

Answer 9

yes L = 96 sq. ft.

if he is building the base too ... you will do
S=L+B

B is the area of the square base =6*6

Answer 10

for B.
just do $1.50*L
=1.50*96

Answer 11

then it would be $144.00?

Answer 12

yes

Answer 13

AWWWW okay thank u!!