QUESTION NUMBER (4) Please answer that! Urgent!!!!
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please see the figure
AB║CE
⇒x=∠ACE (OPP INT ANGLES)
AND, ∠B=∠ECD=70° (CORRESPONDING ANGLES)
ALSO AB=AC
⇒∠B=∠C=70° (ANGLES OPP TO EQUAL SIDES ARE EQUAL)
IN ΔABC, ∠A+∠B+∠C=180° (ANGLE SUM PROPERTY)
x+70+70=180
x=180-140=40°
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