Kakak tolong caranya mengerjakan soalnya aku kurang paham
• Bangun Datar
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Diameter = 2 kali jari jari
Jari jari = 1/2 diameter
2. a. 5 × 2 = 10 cm
b. 8 × 2 = 16 cm
c. 6 × 2 = 12 cm
d. 3,5 × 2 = 7 cm
3. a. 8 ÷ 1/2 = 4 cm
b. 7 ÷ 1/2 = 3,5 cm
c. 6,2 ÷ 1/2 = 3,1 cm
d. 7 ÷ 1/2 = 3,5 cm
#Koreksi
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2.
a. r = 5 cm d = 10 cm
b. r = 8 cm d = 16 cm
c. r = 6 cm d = 12 cm
d. r = 3,5 cm d = 7 cm
3.
a. d = 8 cm r = 4 cm
b. d = 7 cm r = 3,5 cm
c. d = 6,2 cm r = 3,1 cm
d. d = 7 cm r = 3,5 cm
Cara :
r = jari jari
d = diameter
r = d : 2 / d x ½
d = r x 2
Contoh :
r = 56 cm
d = 56 x 2
= 112 cm
d = 94 cm
r = 94 : 2
= 47 cm
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