Question

Tolong jawab ya pakek artinya besok dikumpulin pliss...

Answer 1

No 1
I) 5x20=100cm
II)5x10=50cm
jadi, 100+50=150cm2
no 2
I) (50+10)x30 /2=1.800 /2=900cm2
II) 10x15=150
jadi,900+150=1.050cm2
no 3
I) 42x42=1.764cm2
II) 22 /7 x42x42 /2
22x3x42=1.584
jadi, 1.764-1.584=180cm2
no4
kalau no 4 tdk tau maaf hanya sampai sini

Answer 2

1.) (5×15) + (5×10)
= 75+50
= 125cm2
2.) (1/2 × 30 × 20) + ( 1/2 × 30 × 20) + (15×10) = 300+300+150 = 750 cm2
3.)( 42 × 42 ) - ( 22/7 × 21 pangkat 2) = 1.764 - 1.386 =378 cm2

maaf, hanya bisa sampai nomor 3. thanks