tolongin aku ya kakak no 28

28)L1 = s × s
= 14 × 14
= 196 cm²
L2 = ½ × π × r²
= ½ × 22/7 × 14 × 14
= 4.312 / 14
= 308
Lttl = 196 + 308 = 504 cm²

Luas persegi= s x s
= 14x14
= 196
Luas set lingkaran= 1/2 π r^2
= 1/2 x 22/7 x 14x14
= 308
Luas total= 196+ 308
=504 cm^2