What is the surface area of this square pyramid? A. 1080 m2 B. 360 m2 C. 504 m2 D. 414 m2

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What is the surface area of this square pyramid? A. 1080 m2 B. 360 m2 C. 504 m2 D. 414 m2

Mathematics
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Other answers:

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
add up that with the area of the base, which is a square area of a square = 12^2
that will give the surface area
did yo get it?
144??
Surface area = 1/2x15x12+12^2
12 *12 right
don't know i don't have a calculator haha
yes 144 =12^2
you still need to add 1/2 x 15 x12
144+90=?
got 162
hmm how?
1/2 15 12=90 90+144=234
\[15\times12\div \frac{ 1 }{ 2}=\]
+144
no the area of a triangle is 1/2 hxb
\(\frac{1}{2}hb\)
o srry got 234
ok now you are good!!
when i did it again
ok then what
that's all!!
oh hold we forgot to multiple 90 by 4
brb
because there are four triangle
so 360+144=?
that was blinder from me. i wrote above, i thought i did that already
So surface area =360+144=504 which matches one of your answers
you got it?
if you are confused say so
no i was doing sumpthin im back now
ok
thanks can u help with some more
I'm actually leaving to sleep!
o ok:(((
if you have a quick question n problem
ok

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