Kunci Jawaban Matematika SMP Kelas 8 Semester 2 Halaman 93, 94, dan 95 Lengkap!

Jawab: Pb = α/360 x 2πr

Pb = 90/360 x 2 x 22/7 x 7

Pb = 11 cm

- Diketahui: α = 60°

r = 21 cm

π = 22/7

Ditanya: Panjang busur (Pb)…?

Jawab: Pb = α/360 x 2πr

Pb = 60/360 x 2 x 22/7 x 21

Pb = 22 cm