yang no 90 aku kurang paham tolong kasih jawaban nya

tinggal bikin diagram lingkaran trus dicari presentasenya

pertanian :
[tex] \frac{60}{200} \times 100\% = 30\%[/tex]
perternakan :
[tex] \frac{40}{200} \times 100\% = 20\%[/tex]

perikanan :
30/200x100% = 15%

kerajinan :
20/200x100% = 10%

tata boga dan makanan :
50/200x100%= 25%

Jumlah buku =
60 + 40 + 30 + 20 + 50 = 200 buku

presentase buku pertanian :

60/200 = 3/10 x 100% = 30%
60/200 = 3/10 x 360 = 108 derajat ( juring )

presentase buku peternakan :

40/200 = 1/5 x 100% = 20%
40/200 = 1/5 x 360 = 72 derajat ( juring )

presentase buku perikanan :

30/200 = 3/20 x 100% = 15%
30/200 = 3/20 x 360 = 54 derajat ( juring )

presentase buku kerajinan :

20/200 = 1/10 x 100% = 10%
20/200 = 1/10 x 360 = 36 derajat ( juring )

presentase buku Tata boga dan Makanan :

50/200 = 1/4 x 100% = 25%
50/200 = 1/4 x 360 = 90 derajat ( juring )

pengerjaan :
digambar menggunakan busur derajat sesuai data diatas.