Mathematics
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OpenStudy (anonymous):
If ABCD is a parallelogram, what will be the value of BC
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OpenStudy (anonymous):
|dw:1372340814832:dw|
ganeshie8 (ganeshie8):
|dw:1372341238109:dw|
ganeshie8 (ganeshie8):
opposite sides are equal in ||gram. set them equal and solve x first
ganeshie8 (ganeshie8):
9x+3 = 11x-17
ganeshie8 (ganeshie8):
solve x
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ganeshie8 (ganeshie8):
square hater.... thr ? :)
OpenStudy (anonymous):
it doesnt go out well its a decimal
ganeshie8 (ganeshie8):
nope you wont get a decimal
ganeshie8 (ganeshie8):
9x+3 = 11x-17
subtract 9x
ganeshie8 (ganeshie8):
9x+3 = 11x-17
-9x -9x
3 = 2x - 17
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ganeshie8 (ganeshie8):
add 17
ganeshie8 (ganeshie8):
3 = 2x - 17
+17 + 17
20 = 2x
OpenStudy (anonymous):
divide then
ganeshie8 (ganeshie8):
yes ! do it
OpenStudy (anonymous):
10
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ganeshie8 (ganeshie8):
x = 10
ganeshie8 (ganeshie8):
but the question is not just about finding x
ganeshie8 (ganeshie8):
|dw:1372342061044:dw|
ganeshie8 (ganeshie8):
it wants u find bc
ganeshie8 (ganeshie8):
plugin x=10 there
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OpenStudy (anonymous):
78
ganeshie8 (ganeshie8):
correct
OpenStudy (anonymous):
im just confused with parallelograms i have a whole lesson on it
ganeshie8 (ganeshie8):
u need to remember few properties about ||gram
ganeshie8 (ganeshie8):
1. opposite sides are equal
2. opposite angles are equal
3. diagonals bisect each other
4. adjacent angles add up to 180
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ganeshie8 (ganeshie8):
oly those 4 you need to remember. entire parallelogram module is oly about those 4 properties