Question

multiple choice question

Answer 1

hi do you know the formula for the surface area and lateral area of these two solids?

Answer 2

no

Answer 3

oh ok,,you can look in the web...look for the lateral surface area of cylinder, then the surface area of it..do u wanna do that first?

Answer 4

not really cuz my computer is slow and i cant open another tab

Answer 5

ok for the prism first,, SA = 2(LW+HL+HW) ..... L= LENGTH, H=HEIGHT, W=WIDTH
FOR THE CYLINDER SA=2piR^2+2PiRH ....pi=3.1416 , r=radius h=height of cylinder

Answer 6

#8 would be b
#9 would be a

Answer 7

did you try solving it first?

Answer 8

no

Answer 9

for the cylinder the surface area would be 471

Answer 10

lets try it...for cyllinder sa=2pi rh=2*3.1416*2.5*10=50pi=50*3.1416=157.079

Answer 11

i got 471
2*3.14*5^2+2*3.14*5*10
157+314=471

Answer 12

for prism is that 6 and 4? or 8 and 4?

Answer 13

prism is 6 and 4

Answer 14

yes im sorry, ok you are right, i was solving for lateral area

Answer 15

ok

Answer 16

so this 157.079 is the lateral area of the cylinder

Answer 17

for lateral area of prism is 4x5+4x5+4x4+4x6=?

Answer 18

3000

Answer 19

ok which is greater? for lateral area

Answer 20

prism

Answer 21

wait that is 20+20+16+24=80 did you see it?

Answer 22

yea.. i acidiantly did it all together

Answer 23

so the cylinder for lateral area

Answer 24

yes then try for SA for the other one

Answer 25

the SA for the cylinder is 471

Answer 26

how do i find the SA for the prism?

Answer 27

wait for cyl, use r=2.5 instead of diameter=10

Answer 28

sorry i mean use r=2.5 not d=5

Answer 29

r=5
h=10

Answer 30

d=5
r=2.5
h=10

Answer 31

i though d was id the line went all the way across

Answer 32

d=diameter of the circumference of the circle. r=radius of the circle

Answer 33

r=d/2

Answer 34

SA=196.25

Answer 35

CYL SA=2*3.1416*2.5^2 +2*3.1416*2.5*10=196.35 APPROX

Answer 36

ok

Answer 37

FOR PRISM ITS THE 2 TOP COVER PLUS THE LATERAL AREA

Answer 38

80+4+5

Answer 39

89

Answer 40

PRISM SA=2(24+20+30)=148

Answer 41

so this one would be A

Answer 42

OK,,,,GOOD LUCK

Answer 43

thanks

Answer 44

WC