Question

Help me Solve solve this please right answer I’ll give brainlist to.

Answer 1

7 ft tall

Step-by-step explanation:

The shadows formed by the tree and you are similar triangles so the ratios of their legs must be equal to each other. Therefore, we can write

$\dfrac{x}{20\:\text{ft}} = \dfrac{42\:\text{ft}}{120\:\text{ft}}$

Solving for the height x, we get

$x = \left(\dfrac{42\:\text{ft}}{120\:\text{ft}}\right)(20\:\text{ft}) = 7\:\text{ft}$