Soal UTS PTS Matematika Kelas 9 Semester 2 Beserta Pembahasan Kunci Jawaban 2022, Terbaru

r = 1/2 s

Lp = 4 phi r2

Lp = 4 phi x (1/2 s)2

Lp = 4 phi x 1/4 s2

Lp = phi s2 cm2

- Volume

v = 4/3 phi r3

v = 4/3 phi x (1/2 s)3

v = 4/3 phi x 1/8 s3

v = 1/6 phi s3 cm3