• In Fig. 13.115, ABCD is a rectangle in which diagonal AC is produced to e if
angle ECD = 146°, find angle AOB.
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Answers
Answered by
3
Answer:
56+X+90=180
180÷2=90
therefore angle aob=90
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Answered by
15
Answer:
Step-by-step explanation;
angle DCO+DCE=180(Linear pair)
angle DCO=180-146=34
angle CDO = angle DCO (Diagonals bisection )
angle DCO=34 angle DOC=34+34+ angle DOC=180(Angle SumProperty)
angle DOC=112
Hence,
Angle AOB=Angle DOC(vertically opposite Angles)
DONE!!!
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