Solution

24852

First name
Alistair Burton
School
Crosscrake C.E primary school
Country
Age
10

The children could calculate the height of the tree using simple trigonometry.

What they should do is place an object somewhere nearby the tree, measure the distance between the tree and the object, and measure the angle of elavation of the tree from the rock. From this information, they could calculate the height of the tree with tan.

Alistair