Chiều cao của hình hộp chữ nhật là

\(2,5\times\dfrac{1}{2}=1,25\left(m\right)\)

Thể tích bể là

\(1,25\times2,5\times4=12,5\left(m^3\right)\)

Đổi 12,5 m³ = 12500 dm³ = 12500 l

Chiều cao là;

          2,5 x 1/2 = 1,25 (m)

Thể tích là:

         4 x 2,5 x 1,25 = 12,5 (m3)

                   Đ/S: 12,5 m3

6 m 5 dm 4 cm

cảm ơn bạn

Tổng 2 đáy của thửa ruộng hình thang là

\(32:2=16\left(m\right)\)

Cạnh của hình vuông là

\(64:4=16\left(m\right)\)

Diện tích hình vuông là

\(16\times16=256\left(m^2\right)\)

Chiều cao của thửa ruộng hình thang là

\(\left(256.2\right):16=32\left(m\right)\)

they will install solar panels on the roof of our house next week

->solar panels will be installed on the roof of our house next week

they will build a new school for poor children next month

-> A new school will be built for poor children next month

they will sell these chemicals everywhere in my hometown

->these chemicals will be sold everywhere in my hometown

they won't show the film on types of future energy sources next friday

-> the film won't be shown on tupes of future energy sources next Friday

they will install solar panels on the roof of our house next week

->solar panels will be installed on the roof of our house next week.

they will build a new school for poor children next month

-> A new school will be built for poor children next month.

they will sell these chemicals everywhere in my hometown

->these chemicals will be sold everywhere in my hometown.

they won't show the film on types of future energy sources next Friday

-> the film on types of future energy sources won't be shown next Friday 

315 cm

315cm

phòng 3

phòng 3 vì sư tử nhịn đói ba năm là phải chết rồi