Answer:
the height of the tree is 21 feet
Step-by-step explanation:
The computation of the height of the tree is shown below:
As the tree and slides are next to each other so their shadows would be proportional to heights
i,e,
[tex]\frac{10}{20} = \frac{height}{42} \\\\Height = \frac{42\times 10}{20}[/tex]
Height = 21 feet
hence, the height of the tree is 21 feet
