to long jawab nomer 21,22,23

21.K.Trapesium
=s1+s2+s3+s4
=35+23+46+23
=127cm (D)

22.L.¾O
=¾×Π×r×r
=¾×22/7×35×35
=2.887,5 cm² (B)

23.L.bangun
=L.persegi panjang+L.trapesium
=p×l+½×(a+b)×t
=36×10+½×(24+36)×13
=360+390
=750cm² (A)

maaf kalau salah