Plis mohon di jawab.......

6.
a. luas juring AOB
= 80/360 × luas lingkaran
= 2/9 × (3,14) (10)^2
= 2/9 × (3,14) (100)
= 2/9 × 314
= 69,78 cm^2

b. Pj apotema OC
= akar 10^2 - 5^2
= akar 100 - 25
= akar 75
= 8,66 cm

c. luas segitiga OAB
= 1/2 × a × t
= 1/2 × 10 × 8,66
= 43,30 cm^2

d. luas tembereng AB
= luas juring AOB - luas segitiga OAB
= 69,78 - 43,30
= 26,57 cm

7.
a. Pj busur BC
= 30/60 × 8,7
= 1/2 × 8,7
= 4,35 cm

b. Pj busur AB
= 90/60 × 8,7
= 3/2 × 8,7
= 13,05 cm

c. K-lingkaran
= 360/60 × 8,7
= 6 × 8,7
= 52,2 cm

d. luas juring AOC
= 120/60 × 36
= 2 × 36
= 72 cm^2

e. luas lingkaran
= 360/60 × 36
= 6 × 36
= 216 cm^2


mohon dicek lagi jawaban saya, maaf kl salah...
silahkan tanya jk tdk mengerti
TY