tolong ya di jawab. besok di kumpulkan

•1

90 km ÷ 2 liter = 45 km/liter

270 km ÷ 45 km = 6 liter - 3 liter = 3 liter yang harus diisi


•2

500.000 x 15%
= 75.000
= 500.000 - 75.000
= 425.000

•3

4x+5+8x+5x-12 = 180°
4x+8x+5x = 180°-5+12
17x = 187°
x = 187°/17
x = 11°

<KLN = 4*11+5 = 49°

<NLO = 8*11 = 88°

<MLO = 5*11-12 = 43°


•4

L = a x t x ½
216 cm² = a x 12 cm x ½
216 cm² = a x 6 cm
a = 216 cm²/6 cm
a = 36 cm

<A = <B = 83°

<C = <D = 180°-<A = 97°

K = Jumlah seluruh sisi
K = AD + DC + CB + BA
K = 13 + 13 + 13 + 36
K = 75 cm


Maaf jika ada kesalahan