Jawablah pertanyaan diatas dgn benar​

Jawaban:

a.2πr=2×3,14×2,5=9,7cm

b.2×3,14×15=94,2cm

c.2×3,14×(32:2)=100,48cm

Jawaban:

a. K = 2 × phi × r = 2 × 3,14 × 2,5 = 15,7 cm²

b. K = 2 × phi × r = 2 × 3,14 × 15 = 94,2 cm²

c. K = phi × d = 3,14 × 32 = 100,48 cm²

Semoga membantu, salam pendidikan