tolong bantu ya...itu angkanya 14 semua kok...

9) luas total = luas 3/4 lingkaran
= 3/4 ,π r²
= 3/4.22/7.14.14
= 462 cm²
10) luas total = luas 1 lingkaran + luas 1/4 lingkaran
= π×r² +1/4.π.r²
= 22/7.14.14 + 1/4.22/7.14.14
= 616 + 154
= 770 cm²

no 9. L=3/4.22/7.14.14=462
L=462cm²
no10. L= 462+1/2.22/7.14.14=462+308=770cm²
L= 462+ 770