plis pake caranua yyyyyy

No 2
V tabung = phi × r^2 ×t
V tabung = 3,14 × 5 × 5 ×25
V tabung = 1,962.5 cm^3

No 4
Luas gabungan
= Luas 1/2 lingkaran + Luas persegi panjang
= ( 1/2 × phi × r^2 ) + ( p × l )
= ( 1/2×22/7×7×7 ) + ( 9 × 14 )
= 77 + 126
= 203 cm^2

No 5
Luas 1/2 lingkaran
= 1/2 × phi × r^2
= 1/2 × 22/7 × 10,5 × 10,5
= 173.25 cm^2

Keliling 1/2 lingkaran
= 1/2 × phi × d
= 1/2 × 22/7 × 21
= 33 cm

Semoga membantu ^^