11. if _POR and LQOR form pair and a-b=80, then find the value of a and b.
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Answer:
a=130° b=50°
Step-by-step explanation:
∵ ∠POR and ∠QOR form the
linear pair.
=> ∠POR + ∠QOR = 180°
=> a + b = 180° …(1)
a – b = 80° …(2)
Adding Eqn. (1) & (2)
2a = 260 => a = 130°
From Eqn. (1)
130° + b = 180° => b = 50°
a = 130°, b = 50°
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