![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The map distance is 1.5 cm.
\A map has a scale of 1 cm : 5 km.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=94ab2ed5ee06f1409f12d04867c0ff9c.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=beb996bc28612bd84bbc8f018989b364.png\")
(Cross products property)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d280f80fde0b2542efa5d2346f0f880b.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4418366bbd7d3d04ab8d22a86ee108a0.png\")
)
The actual distance is 7.5 km.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The actual distance is 7.5 km.
\