If a 40 -foot tree casts a 12 -foot shadow, find the length of the shadow cast by a 26 dash foot tree?

7.8 feet

Step-by-step explanation:

The shadow, the ground and the distance between the top of the tree and end of the shadow form 2 right-angled triangles which are similar.

So corresponding sides are in the same ratio. Therefore:-

40 / 12 = 26/x where x is the length of shadow cast by the smaller tree.

40x = 12*26

x = (12*26) / 40

= 7.8 feet