Please help on Question (d) and (a) only.
Show workings and answer well.
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answer A)
a + 80° - 120 ( LINEAR PAIR )
A - 40°
B = 80° ( Vartical opposite angle )
ANSWER d)
a + 100 = 180 ( linear pair )
a = 80°
a = c ( internal opposite angle )
so , c= 80°
c + b + 55° = 180°. ( Linear Pair )
80 + 55 + b = 180
135 + b = 180°
b = 45°
( ✅ verified answer )
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