What is the length of the pen?

(a)  

What is the length of the eraser?

(a)  

What is the length of the arrow?

(a)  

What is the length of the string bean?

(a)  

What is the length of the nail?

(a)  

What is the length ofthe screw?

(a)  

What is the length of the line?

(a)  

What is the length of the watch?

(a)  

What is the length of the object ?

(a)