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Angles in Same Segment of a Circle

In ABC the ...

Question

In $△ A B C$ the $∠ B = 60^{o}, ∠ C = 45^{o}$ Find $∠ A$

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Solution

Consider $Δ A B C$
By angle sum property
$∠ A + ∠ B + ∠ C = 180 ∠ A + 60 + 45 = 180 ∠ A = 180 - 105 = 75$

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Similar questions

△ A B C,

∠ A = 45^{o}

∠ B = 60^{o}

∠ A

△ A B C

∠ B = 60, ∠ C = 45^{o}

△ A B C, ∠ B = 90^{o}, ∠ A = 45^{o} = ∠ C

sec 45^{o} =

A B C

B C

D

A

D

∠ B A C = 60^{o}

∠ A B C = 45^{o}

∠ A C D

∠ B = 60^{o}

∠ C = 45^{o}

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