Jawapan

Jawapan Paling Bijak!
2016-09-22T18:04:05+08:00
SOALAN 7
22/7×4²=50.2857cm²
22/7×3²=28.2857cm²
50.2857-28.2857=22cm²

SOALAN 8
first kena cari lengkok bg PSQ:
2×22/7×21=132cm
300°/360°×132=110cm

n then, cari lengkok bg PRO:
2×22/7×(21÷2)=66cm
1/2×66=33cm

perimeter kwsn berlorek:
110+33+21=164cm
1 5 1
PRO ialah semibulatan. Jadi, PRO : 66/2 = 33 cm
oh,br perasan..thanks..sorry for the mistake..