penjelasan dengan langkah langkah

RUMUS

DIAMETER (D= 2×R)

KELILING (K= 2 × π × R)

LUAS ( L= πR²)

R BISA DISEBUT JUGA JARI JARI.

1. DIAMETER = 2 × 7 = 14 CM

KELILING = 2 × 22/7 × 7 = 44 CM

LUAS = 22/7 × 7 × 7 =154 CM²

2. DIAMETER = 2 × 14 = 28 CM

KELILING = 2 × 22/7 × 14 = 88 CM

LUAS = 22/7 × 14 × 14 = 616 CM²

3. DIAMETER = 2 × 21 = 42 CM

KELILING = 2 × 22/7 × 21 = 132 CM

LUAS = 22/7 × 21 × 21 = 1.386 CM²

4. DIAMETER = 2 × 28 = 56 CM

KELILING = 2 × 22/7 × 28 = 176 CM

LUAS = 22/7 × 28 × 28 = 2.464 CM²

5. DIAMETER = 2 × 35 = 70 CM

KELILING = 2 × 22/7 × 35 = 220 CM

LUAS = 22/7 × 35 × 35 = 3.850 CM²

6. DIAMETER = 2 × 5 = 10 CM

0 CMKELILING = 2 × 3,14 × 5 = 31,4 CM

CMLUAS = 3,14 × 5 × 5 = 78,5 CM²

7. DIAMETER = 2 × 10 = 20 CM

CMKELILING = 2 × 3,14 × 10 = 62,8 CM

CMLUAS = 3,14 × 10 × 10 = 314 CM²

8. DIAMETER = 2 × 20 = 40CM

CMKELILING = 2 × 3,14 × 20 = 125,6 CM

CMLUAS = 3,14 × 20 × 20 = 1.256 CM²

9. DIAMETER = 2 × 100 = 200 CM

CMKELILING = 2 × 3,14 × 100 = 628 CM

CMLUAS = 3,14 × 100 × 100 = 31.400 CM²

10. DIAMETER = 2 × 25 = 50 CM

CMKELILING = 2 × 3,14 × 25 = 157 CM

CMLUAS = 3,14 ×25 × 25= 1.962,5 CM²