A tree casts a shadow that measures 5 m.At the same time, a meter stick casts a shadow that is 0.4 m long. How tall isthe tree? Solution Let ym be the tree\'s tall. 1/0.4=y/5 1/0.4x0.4=y/5x0.4 1=0.4y/5 1x5=0.4y/5x5 5=0.4y 5/0.4=0.4y/0.4 y=12.5 The tree is 12.5m. Hope this helps~ Please Rate!.