Jawabanmu

2014-05-23T21:13:02+07:00
A. 10.15
> jarum pendek
10.15/60 x 30 = (5 x 30) + (15/60 x 30)
= 150 + 7,5
= 157,5°
> Jarum panjang
(15 x 6) = 90°

sudut yg terbentuk: 157,5° - 90° = 67,5°

b. 10.00
> jarum pendek
10.00/60 x 30 = (10 x 30) + (00/60 x 30)
= 300°

> jarum panjang
(0 x 6) = 0°
sudut yg terbentuk: 360 - (300 - 0) = 60°

c. 15.30
> jarum pendek
15.30/60 x 30 = (15 x 30) + (15/60 x 30)
= 450 + 15
= 465°

> jarum panjang
(30 x 6) = 180°
sudut yg terbentuk: 360 - (465° - 180°) = 75°

d. 03.30
>jarum pendek
03.30/60 x 30 = (03 x 30) + (30/60 x 30)
= 90 + 15
= 105°

> jarum panjang
(30 x 6) = 180°
sudut yg terbentuk: 180° - 105° = 75°

e. 12.15
> jarum pendek
12.15/60 x 30 = (12 x 30) + (15/60 x 30)
= 360 + 7,5
= 367,5°

> jarum panjang
(15 x 6) = 90°
sudut yg terbentuk: 360 - (367,5° - 90°) = 82,5°

semoga membantu. :) maaf jika ada kesalahan