Question

bantu kak butuh bgt ini,pke caranya ya​

Answer 1

∠BOC = 116°

Penjelasan dengan langkah-langkah :

› Nilai x

(3x + 5)° + (2x - 10)° = 180°

      3x + 2x + 5 - 10 = 180°

                      5x - 5 = 180°

                            5x = 185°

                              x = ¹⁸⁵⁄₅

                              x = 37

› Besar ∠BOC

∠BOC = 180° - (2x - 10)°

            = 180° - (2(37) - 10)°

            = 180° - (74 - 10)°

            = 180° - 64°

            = 116°