Beserta cara #poinbesar​

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Beserta cara #poinbesar​

Beserta cara #poinbesar​

Jawaban:

6). diameter = 56

r = 56/2 = 28 m

harga rumput = 7500

luas taman =

pi times {r}^{2} = frac{22}{7} times 28 times 28 = 2464 : {m}^{2}

biaya =

2.464 × 7.500 = 18.480.000

jadi biaya pembuatan taman yaitu Rp. 18.480.000,00

7). r = 3 m

keliling setengah lingkaran

2 times pi times r = 2 times 3.14 times 3 = 18.84 : cm

jadi keliling kolam pak amat = 18,84 cm

semoga membantu