Tolong ka MTK cuma 5 soal ko coin pasti banyak terus aku kasih jawaban terbaik koo ​

Jawaban:

1. a. L= π x r x r

= 22/7 x 21 x 21

= 66 x 21

= 1.386 Cm²

b. L = π x r x r

= 22/7 x 28 x 28

= 88 x 28

= 2.464 Cm²

c. L = π x r x r

= 22/7 x 49 x 49

= 154 x 49

= 7.546 Cm²

d. L = π x r x r

= 22/7 x 70 x 70

= 220 x 70

= 15.400 m²

e. L = π x r x r

= 22/7 x 3.5 x 3.5

= 22/7 x 12.25

= 3,89 m²