tentukan jari jari dan diameter lingkaran yamg kelilingnya sebagai berikut!

Berikut ini adalah pertanyaan dari syifanur6789 pada mata pelajaran Matematika untuk jenjang Sekolah Dasar

Tentukan jari jari dan diameter lingkaran yamg kelilingnya sebagai berikut! a. keliling= 77cm b. keliling= 141,3 cm c. keliling= 69,08 cm d. keliling= 198 cmplis_ kak yang jago mtk bantuin lahhh​

Jawaban dan Penjelasan

Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.

a). Diameter:

K = π × d

d = K ÷ π = 77 ÷ 22/7 = 77 × 7/22

= 3,5 × 7 = 24,5 cm

Jari-jari:

r = d/2 = 24,5/2 = 12,25 cm

b). Diameter:

d = 141,3 ÷ 3,14 = 45 cm

Jari-jari:

r = 45/2 = 22,5 cm

c). Diameter:

d = 69,08 ÷ 3,14 = 22 cm

Jari-jari:

r = 22/2 = 11 cm

d). Diameter:

d = 198 ÷ 22/7 = 198 × 7/22

= 9 × 7 = 63 cm

Jari-jari:

r = 63/2 = 31,5 cm

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Last Update: Fri, 28 Jan 22