Plisyg pengayaan sampai portofolio!

1. lebar = 140/2 – 50 = 20 m

Luas = 50 x 20 = 1.000 m²

2. Lp = 2πr(r + t)

= 2 x 22/7 x 21 x (21 + 50)

= 132 x 71

= 9.372 cm²

3. Luas permukaan kubus = Volume kubus = 216 cm²

4. jawaban sama dengan nomor 3

V = 6³ = 216 cm³

5. V = πd²t/4

V = 3,14 x 30² x 20/4

V = 3,14 x 900 x 5

V = 14.130 cm³

portofolio,,,,

Volume air dalam pipa

= π x r² x t

= 3,14 x 20² x 5×100

= 3,14 x 400 x 500

= 1.256 x 500

= 628.000 cm³

= 628.000/1.000

= 628 liter

Pengayaan
no. 1 = 7.000
no. 2 = 646.800
no. 3 = gk tau
no. 4 = 18
no. 5 = 369.600