Bantu jawab nomor 4&5 please, pakai cara, mohon bangeettt
Jawaban Terkonfirmasi
4. Luas lingkaran = πr² = 154 cm²
Maka r² = 154 : 22/7
= 22 x 22 = 484 cm
Maka r = √484 = 22 cm
Diameter = 2r = 2 x 22 = 44 cm
5.v tabung = luas alas x tinggi
= 38 cm² x 12 cm
=456 cm³