Question

What is the surface area of this square pyramid?




A.


1080 m2


B.


360 m2


C.


504 m2


D.


414 m2

Answer 1

http://static.k12.com/calms_media/media/395500_396000/395746/2/78780e065e17cb67e7417f81c27c07acfe937348/53278_question.jpg

Answer 2

@taramgrant0543664

Answer 3

@Shirley27

Answer 4

that pyramid has 4 triangles that are congruent
meaning they the same area
so 4(the area of one)
area of one trianle is 1/2x15x12

Answer 5

add up that with the area of the base, which is a square
area of a square = 12^2

Answer 6

that will give the surface area

Answer 7

did yo get it?

Answer 8

144??

Answer 9

Surface area = 1/2x15x12+12^2

Answer 10

12 *12 right

Answer 11

don't know i don't have a calculator haha

Answer 12

yes 144 =12^2

Answer 13

you still need to add 1/2 x 15 x12

Answer 14

144+90=?

Answer 15

got 162

Answer 16

hmm how?

Answer 17

1/2 15 12=90
90+144=234

Answer 18

\[15\times12\div \frac{ 1 }{ 2}=\]

Answer 19

+144

Answer 20

no
the area of a triangle is 1/2 hxb

Answer 21

\(\frac{1}{2}hb\)

Answer 22

o srry got 234

Answer 23

ok now you are good!!

Answer 24

when i did it again

Answer 25

ok then what

Answer 26

that's all!!

Answer 27

oh hold we forgot to multiple 90 by 4

Answer 28

brb

Answer 29

because there are four triangle

Answer 30

so 360+144=?

Answer 31

that was blinder from me. i wrote above, i thought i did that already

Answer 32

So surface area =360+144=504
which matches one of your answers

Answer 33

you got it?

Answer 34

if you are confused say so

Answer 35

no i was doing sumpthin im back now

Answer 36

ok

Answer 37

thanks can u help with some more

Answer 38

I'm actually leaving to sleep!

Answer 39

o ok:(((

Answer 40

if you have a quick question n problem

Answer 41

ok