A girl measuring the height of a tree using a protractor. The protractor can also be called a clinometer. Using basic trigonometry and the distance the girl is from the tree, the height of the tree can be calculated.

px px dpi = cm x cm = MB
Details

Creative#:

TOP22286743

Source:

達志影像

Authorization Type:

RM

Release Information:

須由TPG 完整授權

Model Release:

Yes

Property Release:

No

Right to Privacy:

No

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