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If mB = mD = 39°, find mC so that quadrilateral ABCD is a parallelogram. The diagram is not to scale.
(1 point)
39°
282°
141°
78°
 one year ago
 one year ago
If mB = mD = 39°, find mC so that quadrilateral ABCD is a parallelogram. The diagram is not to scale. (1 point) 39° 282° 141° 78°
 one year ago
 one year ago

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jim_thompson5910Best ResponseYou've already chosen the best response.0
m < C + m < D = 180 x + 39 = 180 solve for x
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
ironic how angle C matches with choice C, but yeah it's correct
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
Based on the information given, can you determine that the quadrilateral must be a parallelogram? Explain. Given: XY congruent to WZ and XW congruent to YZ (1 point) Yes; opposite sides are congruent. Yes; diagonals of a parallelogram bisect each other. Yes; two opposite sides are both parallel and congruent. No; you cannot determine that the quadrilateral is a parallelogram.
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
Can you help me with this one ?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
Draw a picture dw:1358922647384:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
XY = WZ (given) XW = YZ (given) opposite sides are congruent, so we definitely have a parellelogram
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
wait, are you sure it's not c?
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
can you help me with this? mR = 130 and mS = 80. Find mT. The diagram is not to scale. (1 point) 65 70 35 80
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
no it wouldn't be c because we can't determine the two opposite sides are parallel (yet)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
the only thing we are given is that the opposite sides are congruent
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
Draw a line down the middle like this dw:1358923282188:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
then fill in what you know dw:1358923381801:dw Note: segment RT is a angle bisector of angle SRU, so angle SRT is half of angle SRU (130/2 = 65)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
solve for x, then double the value of x to get the angle T
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
how do I solve for x for this?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
if you're not sure how to get x, add up all the angles and they should result in 180 degrees so x+65+80 = 180
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
close, but you have to double it
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
dw:1358923649111:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
dw:1358923661794:dw
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
oh, thankyou. Can you help me with 2 more? Or no?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
sure i can help
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
In the coordinate plane, three vertices of rectangle HIJK are H(0, 0), I(0, d), and K(e, 0). What are the coordinates of point J? (1 point) (2e, 2d) (d, e) (e, d) And the picture is the last answer
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
draw a pic dw:1358923988803:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
do you see what point that last point (? , ?) should be
 one year ago

Emily778Best ResponseYou've already chosen the best response.1
I don't get the answers shown..
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
what is the x coordinate of this point here dw:1358924165773:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
and what is the y coordinate of this point here dw:1358924211028:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
yep the answer is (e, d)
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
dw:1358924527223:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.0
you're welcome
 one year ago
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