Given :
[tex] \\ \\ [/tex]
To Find :
SolutioN : We can simply Solve this question using Angle Sum Property which says that the Sum of Angles of a Triangle is 180° .Let's Go :
[tex] \\ [/tex]
[tex] \maltese \; {\underline{\underline{\sf{ \; Calculating \; the \; ∠3 \; :- }}}} [/tex]
[tex] \; ➻ \; \; \sf { ∠1 + ∠2 + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { 40° + 90° + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { 130° + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { ∠3 = 180° - 130° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; {\underline{\boxed{\purple{\sf { ∠3 = 50° }}}}} \; \pink\bigstar \\ \\ \\ [/tex]
[tex] \therefore \; [/tex] Missing Angle is 50°
[tex] \\ {\underline{\rule{200pt}{9pt}}} [/tex]
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Answers & Comments
Given :
[tex] \\ \\ [/tex]
To Find :
[tex] \\ \\ [/tex]
SolutioN : We can simply Solve this question using Angle Sum Property which says that the Sum of Angles of a Triangle is 180° .Let's Go :
[tex] \\ [/tex]
[tex] \maltese \; {\underline{\underline{\sf{ \; Calculating \; the \; ∠3 \; :- }}}} [/tex]
[tex] \; ➻ \; \; \sf { ∠1 + ∠2 + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { 40° + 90° + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { 130° + ∠3 = 180° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; \sf { ∠3 = 180° - 130° } \\ \\ \\ [/tex]
[tex] \; ➻ \; \; {\underline{\boxed{\purple{\sf { ∠3 = 50° }}}}} \; \pink\bigstar \\ \\ \\ [/tex]
[tex] \\ \\ [/tex]
[tex] \therefore \; [/tex] Missing Angle is 50°
[tex] \\ {\underline{\rule{200pt}{9pt}}} [/tex]