Question Number 104394 by Anindita last updated on 21/Jul/20
Answered by Ritu Jain last updated on 21/Jul/20
$$\mathrm{Sum}\:\mathrm{of}\:\mathrm{internal}\:\mathrm{angles}\:\mathrm{of}\:\mathrm{a}\:\mathrm{triangle}=\mathrm{180}° \\ $$$$\mathrm{the}\:\mathrm{angle}\:\mathrm{in}\:? \\ $$$$=\mathrm{180}°−\mathrm{30}°−\mathrm{40}°=\mathrm{110}° \\ $$