Question

Cho hình vuông có cạnh 12cm. Một  hình thang có đáy lớn 25cm, đáy bé 15cm và có diện tích bằng diện tích hình vuông đó. Tính chiều cao của hình thang

Answer 1

Diện tích hình vuông là :

    12 x 12 = 144 ( cm² )

Chiều cao hình thang là :

   144 x 2 : ( 25 + 15 ) = 7,2 ( cm )

Đúng 100%

Đúng 100%

Đúng 100%

Answer 2

Đáp án là :

7,2 cm

cách làm là :

Bước 1 : tính diện tích hình vuông

Bước 2 : tính tổng đáy lớn và đáy bé 

Bước 3 : lấy diện tích x 2 : tổng hai đáy

Answer 3

                        Bài giải

Diện tích hình vuông là :

        12 x 12 = 144 ( cm )

Chiều cao của hình thang là :

        144 x 2 : (25 + 15) = 7,2 ( cm )

Answer 4

diện k hinh vuong là :

  12 x 12 =144 ( cm 2)

Chiều cao của cái cầu thang là :

  144 x 2 ( 25 + 15 )= 7,2 ( cm)

                               Đáp số : 7,2 cm ( ^_-)

Answer 5

diện tích hình vuông cũng là diện tích hình thang 

   12x12=144(cm²)

chiều cao hình thang là 

144x2:(25+15)=7,2 (cm)

Answer 6

7,2 nha

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Answer 7

7,2 nha sr