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Verified answer
Mapel : MatematikaBab : Bangun Datar
Persegi Panjang dan Trapesium
26]
Banyak patok yang dibutuhkan
= Keliling : jarak
= 2 x ( p + l ) : 5 m
= 2 x ( 100 m + 75 m ) : 5 m
= 2 x 175 m : 5 m
= 350 m : 5 m
= 70 buah
27]
Luas trapesium
= 1/2 x t x ( a + b )
= 1/2 x 16 m ( 32 m + 20 m )
= 8 m x 52 m
= 416 m²
Verified answer
36) Keliling lapangan = 2(p+l)Keliling lapangan = 2(100+75)
Keliling lapangan = 2(175)
Keliling lapangan = 350 cm
Banyak patok = Keliling lapangan / jarak patok
Banyak patok = 350 / 5
Banyak patok = 70 buah
37) Luas sawah = 1/2 x jumlah sisi sejajar x tinggi
Luas sawah = 1/2 x (32+20) x 16
Luas sawah = 1 x 52 x 8
Luas sawah = 416 m²