Hitunglah luas dan keliling lingkarantolong jawab dengan benar ya

Hitunglah luas dan keliling lingkarantolong jawab dengan benar ya

|| nya 22/7

|| nya pake yg 3,14

semoga membantu, semangat belajarnya

Gambar Jawaban

Jawaban dengan langkah-langkah:

1.) K = 2 × $pi$ × r

= 2 × 3,14 × 5

= 31,4 cm

L = $pi$ × $r^{2}$

= 3,14 × 5 × 5

= 78,5 $cm^{2}$

2.) K = 2 × $pi$ × r

= 2 × $frac{22}{7}$ × 14

= 88 cm

L = $pi$ × $r^{2}$

= $frac{22}{7}$ × 14 × 14

= 154 $cm^{2}$

3.) K = 2 × $pi$ × r

= 2 × 3,14 × 20

= 125,6 cm

L = $pi$ × $r^{2}$

= 3,14 × 20 × 20

= 1.256 $cm^{2}$

4.) K = 2 × $pi$ × r

= 2 × $frac{22}{7}$ × 28

= 176 cm

L = $pi$ × $r^{2}$

= $frac{22}{7}$ × 28 × 28

= 2.464 $cm^{2}$

5.) K = 2 × $pi$ × r

= 2 × 3,14 × 34

= 123,52 cm

L = $pi$ × $r^{2}$

= 3,14 × 34 × 34

= 3629,84 $cm^{2}$

6.) K = 2 × $pi$ × r

= 2 × 3,14 × 40

= 251,2 cm

L = $pi$ × $r^{2}$

= 3,14 × 40 × 40

= 5.024 $cm^{2}$

Maaf jika salah

Semoga membantu