If the area of parallelogram ABCD = 246 mm2 and h = 20.5 mm, what is the length of the base of triangle ABD?
12 mm
24 mm
123 mm
There is not enough information given.
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OpenStudy (lollola):
|dw:1455299227159:dw|
OpenStudy (lollola):
Please help
OpenStudy (addicted2anime):
not enough information
OpenStudy (anonymous):
\[a = b.h\]
a is area
h is height
b you have to find?
OpenStudy (anonymous):
Can you do that now?
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OpenStudy (lollola):
So do i do area-height to get the base?
OpenStudy (anonymous):
area divided by height will get you base . yes.
OpenStudy (lollola):
Ok thanks
OpenStudy (addicted2anime):
no, because we dont know the area, we know the area of a parallelogram, which is not a triangle, but we do not know the area of the triangle.
OpenStudy (addicted2anime):
therefore there is not enough information
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OpenStudy (anonymous):
Area of parallelogram is base * height. height is given she has to find base only.
OpenStudy (anonymous):
what answer you get @LOLLOLA ?
OpenStudy (addicted2anime):
yes but she needs to find the base of the triangle.
OpenStudy (lollola):
12?
OpenStudy (addicted2anime):
non, there is not enough info to find the base of the TRIANGLE.
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OpenStudy (addicted2anime):
no*
OpenStudy (anonymous):
Yes there is no enough information. @Addicted2Anime is right .
OpenStudy (addicted2anime):
OHHHH
OpenStudy (anonymous):
Let me draw the picture for you.|dw:1455300078899:dw|
OpenStudy (anonymous):
|dw:1455300173925:dw|
x part is missing.
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OpenStudy (anonymous):
\[Area = b.a \\ area = b.\sqrt{h^2 - x^2}\]
Here x is missing. I was sorry I did not read the question correctly.
OpenStudy (lollola):
The answer is 12
OpenStudy (addicted2anime):
Yes
OpenStudy (lollola):
thanks
OpenStudy (addicted2anime):
np
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