Question

Quiss

31 - 21 + 61?
Jari jari lingkaran adalah 1cm,berapa diameter nya??​

Answer 1

Penjelasan dengan langkah-langkah:

31 – 21 + 61

= (30 – 20 + 60) + 1

= (3 – 2 + 6) × 10 + 1

= (1 + 6) × 10 + 1

= 7 × 10 + 1

= 70 + 1

= 71

r = 1

d = 2 × 1

d = 2 cm

Answer 2

Jawaban:

~1

• 31 - 21 + 61
• = 10 + 61
• = 71

~2

diameter :

• = r × 2
• = 1 × 2
• = 2 cm