Two supplementary angles differ by 500. Find measure of each angle.
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Let a & b be two supplymentory angle then
we know that
a+b=180
o
...(1)
a−b=150
o
...(given)
=>2a=230
[a=115
o
] & b=180−115
o
=65
o
∴[∠a
′
=115
o
] & [∠b=65
o
]
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