Question

tolongg ya kakkk matematika

Answer 1

Diketahui

Garis lurus memiliki sudut 180°

Sudut siku" = 90°

6y = 180 - 90

6y = 90

y = 15°

∠ABD = 4y

∠ABD = 4(15)

∠ABD = 60°

∠EBC = 2y

∠EBC = 2(15)

∠EBC = 30°

Answer 2

Jawaban:

60°

Penjelasan dengan langkah-langkah:

diektahui

- ABC = 180°

- ABD = 4y

- DBE = 90°

- CBE = 2y

ABC = ABD + DBE + CBE

180° = 4y + 90° + 2y

180° - 90° = 4y + 2y

90° = 6y

y = 90/6

ABD = 4y

ABD = 4 x 90/6

ABD = 360/6

ABD = 60