Jawapan

Jawapan Paling Bijak!
2016-09-26T00:17:00+08:00
Πj²+πjs

(22/7x21²)+(22/7x21x36) =
1 5 1
2016-09-26T13:50:23+08:00
Luas permukaan Kon = Pai j²( satu bulatan penuh) = 22/7 x 21² =..... (kalkulator)