jawab yaaaa 1 sampai 5

semoga membantu ya.... :)

1.L=(a+b)×t/2
=(18+(18+5+5))×12/2
=(18+28)×12/2
=46×12/2
=552/2
=276cm²
2.L=π×r²

=3,14×10²
=314cm²
3.L1 =p×l
=24×16
=384cm²
L2=a×t/2
=12×(16÷2)/2
=12×8/2
=96/2
=48cm2
L1+L2=384+48
=432cm2
4.L1=p×l
=30×20
600cm2
L2=π×r²
3,14×10²
314
L1-L2=600-314
286
5.difoto jawabannya