luas daerah yg diarsir brp? a. 25 b. 35 c. 40 d. 70

luas daerah yg diarsir
=Lsegi3,QPS+LS3,QPR-LS3,QPT
=(1/2x10x8)+(1/2x10x5)-2(1/2x10x3)
=(1/2x10x8)+(1/2x10x5)-(1/2x10x6)
=1/2x10x(8+5-6)
=1/2x10x7
=5x7
=35
maaf jika salah