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S3_面積和體積2_棱錐表面面積

Authored by Jason Lam

Mathematics

7th - 10th Grade

Used 5+ times

S3_面積和體積2_棱錐表面面積
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

圖中是一個直立棱錐的摺紙圖樣,它的底是一個正方形。該棱錐的總表面面積是多少?

240 cm2

340 cm2

400 cm2

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

一直立角錐體的高是 21 cm,底面積是1234cm2,該角錐體的體積是                                 

               

               

               

               

A.    6478.5cm3

B.    8638cm3

C.    12957cm3

D.    25914cm3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

一個直立角錐體的底是一個正方形。若該角錐體的總表面面積是420cm2,一個側面的面

積是56cm2,求該角錐體的底面積。                                                                                                    

       

       

       

       

A.    84cm2

B.    105cm2

C.    196cm2

D.    364cm2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

       一個直立棱錐的底是一個正方形。若底面積為100 cm2,而棱錐的各斜棱的長度是13 cm,求棱錐的總表面面積,答案須準確至二位有效數字。                           

      

      

     

       

A.   240 cm2

B.   340 cm2

  C.   360 cm2

D.    580 cm2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

圖中直立角錐體 VABCD 的底為長方形,其中CD = 12cm。若直立角錐體 VABCD 的總表面面積是864cm2,而VP = 17cmVQ = 10cm,求 BC 的長度。                                                  

               

       

       

       

       

A.    12 cm

B.    24 cm

C.    30 cm

D.    51 cm

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