tolong dibantu ya no 1 sampai 5 doang ko mau dikupulkan sekarang....terimakasih

1. ((10x10/2)x2)+(10x3)+(3x3/2)=100+30+4,5=134,5m^2
2. (30x7)+(7x7)=210+49=259cm^2
3. (8x12)+((3x4/2)x2)=96+12=108cm^2
4. (15x8)+(6x9)=120+54=174cm^2
5. (((10+5)x5)/2)x2=625cm^2