Question

Please help me with the above question......

Answer 1

PQR = 80* = QRA ...... ( alt. interior <s)
& < QRA + < a = 180*..... (linear pair)

Therefore,

a = 180*- 80* = 100*
b = a = 100* ..... (alt. interior angles)
b = c = 100* ..... ( vertically opp. angles)

HOPE IT WILL HELP U. . . . .

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