No 14 dan 15cptn kk,,mksihh​

Jawaban:

14. D. 76⁰

15. B. 46 cm

Penjelasan dengan langkah-langkah:

14. 3x + 5 + 2x + 10 = 180⁰

5x + 15 = 180⁰

5(x + 3) = 180⁰

x + 3 = 36⁰

x = 33⁰

<ABD = 2x + 10

= 2(33) + 10

= 66 + 10

= 76⁰

15. k = 13 + 3 + 4 + 7 + 5 + 7 + 4 + 3

k = 46 cm