chiều cao tam giác abc là 37,5 *2:5=15(cm)
canh day bc la:150*2:1520(cm)
chieu cao la
37.5x2:5=15
day bc la
150x2:15=20
cho hinh tam giac abc co dien tich 150 cm2 . Neu keo dai day bc ve phia b 5cm thi dien tich tang them 37 cm2 tinh day bc
A cho tam giac ABC co dien tich la 150cm2 neu keo dai day BC ve phia B 5cm thi dien tich se tang them 37 phay 5 cm2. Tinh day BC cua tam giac
cho hinh tam giac abc co S la 150cm2. neu keo dai day bc ve phia b mot doan 5cm thi S tang them 37,5cm2.tinh day bc cua hinh tam giac abc
cho tam giac abc neu keo dai day canh day bc mot doan cd sao cho cd = 1/3 bc thi dien tich tang them 37,5 cm2 tinh dien tich tam giac abc
cho tam giac ABC co dien tich la 150 m vuong neu keo dai canh day BC (ve phia B) them 5 m thi dien tich tang them 30m vuong tinh canh day BC
cho hinh tam giac abcd co day nho ab la 27cm , day lon cd la 48 cm neu keo dai day nho ve phia b them 5 cm thi dien tich cua hinh tang len 40 cm2.Tinh dien tich hinh thang da cho
cho tam giac abc neu keo dai canh day bc mot doan cd sao cho cd = 1/3 bc thi dien tich tang them 37,5 cm2 tinh dien tich tam giac abc
cho tam giac ABC co dien tich la 150m2. Neu keo dai day BC (ve phia B) 5m thi dien tich tang them la 35m2. tinh day BC cua tam giac
