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Constructions — Maths STD 7 — Question

Maharashtra BoardEnglish MediumSTD 7MathsConstructions2 Marks
Question
In a $\triangle\text{ABC},$ If $\angle\text{A}=65^\circ,\angle\text{B}=45^\circ,$ find $\angle\text{C}.$
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Answer

$\text{In }\triangle\text{ABC},\angle\text{A}+\angle\text{B}+\angle\text{C}=180^\circ$
$\Rightarrow65^\circ+45^\circ+\angle\text{C}=180^\circ$
$\Rightarrow\angle\text{C}=180^\circ-110^\circ=90^\circ$

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