Các câu hỏi tương tự
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 neu keo dai canh day bc mot doan cd sao cho cd = 1/3 bc thi dien tich tang them 37,5 cm vuong tinh dien tich tam giac abc
cho hinh tam giac bc = 28m neu keo dai day bc ve phia c them mot doan cd = 7m thi dien tich tang them 84m2 tinh dien tich hinh tam giac abc?
Cho hinh tam giac ABC co day BC dai 2cm.Nguoi ta keo dai day BC ve phia C them mot doan CD thi dien tich tam giac ABD= 3/2 dien tich tam giac ABC. Tinh do dai CD
cho tam giac ABC. Keo dai canh BC doan CM= 5,5cm thi dien tich tam giac tang them . Tinh dien tich tam giac ABC, biet day BC=17,2cm. Tren AB lay diem N sao cho BN= 1/4 AB.Tinh dien tich tu giac AMCN
Bài 1:1 mieng dat hinh tam giac co hieu giua day va chieu cao la 10,5m. tinh dien tich mieng dat do, biet rang neu tang canh day them 3,6m thi dien tich mieng dat se tang them 79,2m2
Bài 2:1 mieng vuon hinh tam giac co đỉnh A va day BC dai 45m. neu keo dai canh day BC them 1 doan CD dai 15m thi dien tich se tang them 225m2.
,tinh dien tich mieng vuon do bang đơn vị ha
cho tam giac abc co day bc bang 5,29 cm chieu cao ah bang 3 cm tinh dien tich tam giac abc
keo dai day bc mot doan cd bang 2,3 cm dien tich tang them chiem bao nhieu phan tram dien tich tam giac abc
hinh tam abc co dien tich 360 cm2 neu keo dai bc them mot doan cd = 8cm thi dien tich hinh tam giac abc la 420cm2 . tinh do dai bc
cho tam giac abc co dien tich la 336m2 va co day bc la 28m nay nguoi ta mo rong them bang cach keo dai day bc ve phia c mot doan cd nen dien tich tang them 84m2 tinh doan cd?