Kakak tolong caranya mengerjakan soalnya aku kurang paham ​

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Kakak tolong caranya mengerjakan soalnya aku kurang paham ​

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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