tolong kak pakai cara nya

bangun 1 trapesium sj+sj×t:2= 30(8+8+14=30)+14=44×7=308:2=154 cm


bangun 2. 1/2 lingkaran 22/7×1/2×7×7=77
154-77=77cm²

L trapesium
L = 1/2x(AB+CD)xCF
   = 1/2x(30+14)x7
   = 1/2x44x7
   = 22x7
   = 154
L 1/2 lingkaran
L = 1/2 x phi x r^
   = 1/2x22/7x7.7
   = 77
L daerah yang diarsir
L trapesium-L 1/2 lingkaran
=154-77
=77