carilah luas dan keliling gambar berikut.

L∆=1/2×a×t
=1/2×80×90
=40×90=3600

L∆=1/2×50×130
=40×130=5200

L trapesium=1/2×(a+b)×t
=1/2×(150+60)×80
=1/2×210×80
=105×80=8.400
jd Luasnya 3600+5200+8400=17200

maaf kelilingnya ga tau