Mathematics
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OpenStudy (chunkymonkay):
Does anyone want a medal and fan!!?? just help me with one question.
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OpenStudy (chunkymonkay):
OpenStudy (chunkymonkay):
@bibby
OpenStudy (bibby):
draw a line down from the topmost point splitting the bottommost side in half
what would be the length of each half?
OpenStudy (chunkymonkay):
15?
OpenStudy (chunkymonkay):
@bibby
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OpenStudy (bibby):
yeah so we're left with this triangle.|dw:1427687094104:dw|
OpenStudy (bibby):
use the pythagorean therorem to find x
then plug into the area formula \( A = \dfrac{1}{2}bh\)
OpenStudy (chunkymonkay):
225
OpenStudy (bibby):
is that the area?
OpenStudy (chunkymonkay):
i believe but do i need to find the square root
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OpenStudy (bibby):
I have no idea what you're doing if you aren't showing work
OpenStudy (chunkymonkay):
okay i did 30 x 15 x 1/2 and got 225
OpenStudy (bibby):
the height is x, not 30. we're finding x with the pythagorean thoerem first
OpenStudy (chunkymonkay):
7.5?
OpenStudy (chunkymonkay):
u r smart, I am not!!!!!
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OpenStudy (bibby):
I'm not smart, I just already learned this stuff
OpenStudy (bibby):
\(15^2+x^2=30^2\)
OpenStudy (chunkymonkay):
900?
OpenStudy (bibby):
we're solving for x. you've done the same problems all day...
OpenStudy (chunkymonkay):
yeah and its complicated and this is my last question
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OpenStudy (bibby):
solve for x then
\(15^2+x^2=900\)
OpenStudy (chunkymonkay):
25 x 25 =625
OpenStudy (bibby):
again, pretend I'm your teacher
I'm a cute, mid 20s black man, with a soft voice. I need to see work ma'am
OpenStudy (chunkymonkay):
15*15=225-900=675 i need to find what equals 675 lol ur funny
OpenStudy (bibby):
sqrt(675)=x
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OpenStudy (chunkymonkay):
25.98 rounded would be 26 right
OpenStudy (bibby):
now you can plug the numbes in
OpenStudy (bibby):
so |dw:1427688397546:dw|
OpenStudy (chunkymonkay):
390
OpenStudy (chunkymonkay):
19.9 is the square root
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OpenStudy (bibby):
full area comes out 389.71 which rounds up to 390
no need for square roots...
OpenStudy (chunkymonkay):
oh okay
OpenStudy (chunkymonkay):
so 390 is the answer
OpenStudy (bibby):
yea
OpenStudy (chunkymonkay):
okay thanks youuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu!!!!!!!!!!!!!!