eshmish
eshmish
11-06-2018
Mathematics
contestada
How do you start this off?
Respuesta :
Mistystar4881
Mistystar4881
11-06-2018
Hey there!
I know you only asked for how to start it off, but I'll give you a walkthrough of the whole problem here.
The angles of a quadrilateral add up to 360º.
If I'm not wrong, this is a parallelogram, correct? That means there are two sets of equal angles.
∠TUR = ∠TSR while ∠STU = ∠SRU
Since ∠TUR = 138º, so will ∠TSR. Together they are 276º.
The other 2 angles have a combined measure of 84º because 360 - 276 = 84.
The remaining two angles are equal, so just divide 84 in half.
84 ÷ 2 = 42
Your answer is
x = 42º
, or
option B
.
Hope this helps!
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