tolong kerjakan di kasih caranya

a. → (CD / <COD = (BC / <BOC
<=> 30 cm / 90° = (BC / 24° → disederhanakn
<=> 1 cm / 3° = (BC / 24° → kali silang
<=> 3BC = 24
<=> (BC = 24/3
<=> (BC = 8 cm
b. → <AOB = 180° - (24°+90°)
<=> <AOB = 180° - 114°
<=> <AOB = 66°
→ (AB / <AOB = (BC / <BOC
<=> (AB / 66° = 8 cm / 24° → disederhanakn
<=> (AB / 66° = 1 cm / 3° → kali silang
<=> 3AB = 66°
<=> (AB = 66/3
<=> (AB = 22 cm

Jdkn jwbn tercerdas yh:)