... co kich thuoc nhu B. 25 6 0m2 C.3 129 m2 D.3816m2 ,'\ hinh diroi day Dien tich cua san t~p la: ( lJ I 40m I -+ ==-==~ 64m Can KSt qua xSp loai hoc hrc cu6i HQc ki mQt cua kh6i lap co 80 hoc ... hop dS viet vao ch6 cham cua 144 phut A 14,4 B 2, 4 = gio la : C 1,44 D 2, 6 b An tu hoc tir 19 gio 30 phut dSn 22 gio 20 phut Thai gian tu hQCcua An la : A gio 10 phut, B gio 50 phut, C gio 50 phut, ... cua mot mieng bia hinh thang co day Ian 3,8dm, day be 1,2dm, chiSu cao 2, 5dm la 6 ,25 dm2 D b) ThS tich cua hinh lap phuong co canh 5cm la 150 cm3• D Can Khoanh vao chir d~t tnroc cau tra loi dung:...