Bantu jawab guys..!!

Diketahui : r = 21cm
sudut POR = 120°
sudut POQ = 90° (karena siku²)
sudut ROQ = 150° (360° - (120° + 90°)

Jawab :
a.) Ljuring POQ = 90°/ 360° × πr² (L lingkaran)
=¼ × 22/7. 21. 21
=¼ × 66. 21
= 346,5 cm²

b.) Ljuring POR = 120°/ 360° × 22/7. 21. 21
= ⅓ × 22. 3. 21.
= 22. 21
= 462 cm²

c.) Ljuring ROQ = 150°/ 360° × 22/7. 21. 21
= 5/12 × 66. 21
= 5/12 × 1386
= 577,5 cm²

semoga bermanfaat, maaf kalo salah ;)
jangan lupa dicek kembali

Diketahui :
↪r = 21 cm
↪π = 22/7
↪POR = 120°
↪POQ = 90°
↪ROQ = 360° - 120° - 90° = 150°


Ditanya :
↪L. POQ
↪L. POR
↪L. ROQ

Jawaban :
==========

a). Luas juring POQ

= (POQ/360) x luas lingkaran
= (90/360) x 22/7 x 21²
= (1/4) x 1386
= 346,5 cm²

b). Luas juring POR

= (POR/360) x Luas lingkaran
= (120/360) x 22/7 x 21²
= (1/3) x 22/7 x 21²
= (1/3) x 1386
= 462 cm²

c). Luas juring ROQ

= (ROQ/360) x luas lingkaran
= (150/360) x 22/7 x 21²
= (5/12) x 1386
= 577,5 cm²