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Answers
Answer:
a) 22°
b) 68°
Step-by-step explanation:
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Answer:angle D = 22
angle AED = 68
Step-by-step explanation:
using alt interior angle rule
angle BEC = 42
therefore
angle BEC + angle DEC + angle AED = 180 (angles on a straight line)
42 + 70 + angle AED + 180
angle AED = 68
now in triangle AED
angle A + angle D + angle E = 180 (ASP)
68 + 90 + angle D = 180
angle D = 22