Calculating Object Height Using a Pinhole Camera

[MoniMini]

I don't have any idea how to go about this...
Please help!

A pinhole camera produces an image of an object kept at a distance of 100m from the pin hole. If the screen is 10 cm from the pin hole and the image is 5 cm high, what is the height of the object

Any help will be appreciated

Thank You!

 

[grzz]

Draw the diagram and similar triangles will give you the answer.

 

[MoniMini]

Draw the diagram and similar triangles will give you the answer.

There is no diagram attached to the question

 

[grzz]

Try the web for a diagram.

 

[jtbell]

http://lmgtfy.com/?q=pinhole+camera+ray+diagram