Tolong bantu no 5 ya...bagi sya susah.bsok udh harus di kumpulkan..
mr1
Luas 1= 50 cm x 20 cm = 1000 cm2 luas 2 = 3,14 x (20 cm : 2 ) x (20 cm :2) = 3,14 x 10 cm x 10 cm = 314 cm 2 luas total 1000 cm2 + 314 cm2 = 1314 cm2
Denahrp
K.persegi panjang =2(P+l) =2.(50+20) =140 cm k.1/2lingkaran = 1/2×3,14×d =1/2×3,14×20 =31,4 cm jadi k.yang di arsir = 140cm + 31,4 cm = 171,4 cm
L.persegi panjang = p×l = 50×20 =1000cm² L.1/2 lingkaran =1/2×3,14×r² =1/2×3,14×10² =1/2×3,14×100 =1/2×314 =157cm² L.yang di arsir =1000cm²+157cm² =1157cm²
= 1000 cm2
luas 2 = 3,14 x (20 cm : 2 ) x (20 cm :2)
= 3,14 x 10 cm x 10 cm
= 314 cm 2
luas total 1000 cm2 + 314 cm2 = 1314 cm2
=2.(50+20)
=140 cm
k.1/2lingkaran = 1/2×3,14×d
=1/2×3,14×20
=31,4 cm
jadi k.yang di arsir = 140cm + 31,4 cm
= 171,4 cm
L.persegi panjang = p×l
= 50×20
=1000cm²
L.1/2 lingkaran =1/2×3,14×r²
=1/2×3,14×10²
=1/2×3,14×100
=1/2×314
=157cm²
L.yang di arsir =1000cm²+157cm²
=1157cm²
#maaf kalau salah ^_^