Given:
Consider the dimensions of a rectangular prism are 4 in by 3 in by 10 in.
To find:
The length of the diagonal.
Solution:
Length of diagonal of a rectangular prism is:
![d=√(l^2+b^2+h^2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/kes71w42kofvvno8ofn9kmlxp3345biji0.png)
Where l is length, b is breadth and h is height.
The dimensions of a rectangular prism are 4 in by 3 in by 10 in. So, the length of diagonal of the rectangular prism is:
![d=√((4)^2+(3)^2+(10)^2)](https://img.qammunity.org/2022/formulas/mathematics/high-school/8rrlsk2lcqd4dzt92zfh6t59ciufv6gqn6.png)
![d=√(16+9+100)](https://img.qammunity.org/2022/formulas/mathematics/high-school/vik0u2ro2su8mbxcbf7qoe2k3vffg3s3ex.png)
![d=√(125)](https://img.qammunity.org/2022/formulas/mathematics/college/yrimslh9gs4mbzadnmior6rs0oy74jmeda.png)
![d=5√(5)](https://img.qammunity.org/2022/formulas/mathematics/high-school/a3j0b861viyj52rke2538tsdryvfgs53h5.png)
Approximate the value to the nearest tenth.
![d\approx 11.2](https://img.qammunity.org/2022/formulas/mathematics/high-school/lal1x3jh7p0lj09lriovsvwlz8l39o3fn7.png)
Therefore, the length of diagonal of the rectangular prism is 11.2 in.