Question

1. hitunglah busur BC
2. Jika panjang busur AB= 12 Cm
Hitunglah panjang busur CD​

Answer 1

1.

Jika BOC = 90°

maka

Busur BC

= 90° × 22/7 × 2(7)

= 90/360 × 22/7 × 14

= 1/4 × 44

= 11 cm

..

2.

Busur CD/Busur AB = θ CD/θ AB

Busur CD/12 cm = 60°/30°

Busur CD = 12 cm × 2

Busur CD = 24 cm

[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at}}[/tex]