21 mm2 =.... m2
17cm2=.....mm2
7 km2 5hm2=...dam2
2100mm2=...cm2
2 m2 12 cm2=...cm2
45 cm2=...dm2
34dm2=... m2
347dm2=...cm2
90 m2 200cm2=...dm2
Bai2:Tinh dien tich phan gach cheo biet day cua hinh tam giac bang 6 cm;chieu cao=1/2 day
Giup mik dang can gap mik se vot 5 sao
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Sinh Học lớp 12
