Given:
Height of tree = 24 feet
Shadow of tree = 12 feet long
Height of Brad = 6 feet
For us to be able to determine how long Brad's shadow is, we will be using ratio and proportion.
We get:
![\text{ }\frac{\text{ Length of Brad's shadow}}{\text{ Height of Brad}}\text{ = }\frac{\text{ Length of the tree's shadow}}{\text{ Height of tree}}](https://img.qammunity.org/2023/formulas/mathematics/college/hbwv4ny6jbnt0oxxcrvchcxtlzv7diy2uy.png)
Let,
x = Length of Brad's shadow
![\text{ }\frac{\text{ x}}{\text{ 6}}\text{ = }(12)/(24)](https://img.qammunity.org/2023/formulas/mathematics/college/seuhswvipd40zfw2clryxv2aja2ktzng1x.png)
![\text{ x = \lparen}(12)/(24))(6)](https://img.qammunity.org/2023/formulas/mathematics/college/w435xswcfw05ddny2fr2i8skz0qqimv2sd.png)
![\text{ x = 3 feet}](https://img.qammunity.org/2023/formulas/mathematics/college/t8w4axsuioh8hlqsqn54sheodoq4v4cv4y.png)
Therefore, Brad's shadow is 3 feet long.