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5 questions
If m∠DCF=90 , what is m∠DCE ?
90−m∠ECF
90−m∠DCE
180
90
What is the intersection of the two planes?
Point R
Line QR
Line AB
Point Q
Name the coordinate of the midpoint of AG .
2
−5
−2
−3
If m∠DCF=90, m∠DCE=3x+12, and m∠FCE=4x+1 , find the value of x.
90
12
18
11
Are ∠DCE and ∠ECF vertical, complementary, or supplementary angles, if m∠DCF=90 ?
Vertical
Complementary
Supplementary
Neither
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