1000 Word Search Puzzle Book for Adults: Big Puzzlebook with Word Find Puzzles for Seniors,

1000 Word Search Puzzle Book for Adults: Big Puzzlebook with Word Find Puzzles for Seniors,

Matematika Diketahui jari jari lingkaran 19cm hitunglah luas dan keliling lingkaran!

Diketahui jari jari lingkaran 19cm hitunglah luas dan keliling lingkaran!

Luas:

L = Ο€r²

L = 3,14 × 19²

L = 3,14 × 361

L = 1.133,54 cm²

Keliling:

K = 2Ο€r

K = 2 × 3,14 × 19

K = 6,28 × 19

K = 119,32 cm

~VVM

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