Verified Answer :

bc. you know that 3,4 and 5 are pythagoras triplet 

than you check 18 is 63 and 24 is 64 so the missed side length will be 6*5=30 

so choice d. is right sure 

hope helped

The length should be option d 30 inches.

Calculation of the length:

Here we use the Pythagoras theorem.

Since a right triangle can be formed using three sides have lengths 18 inch, 24 inch and a

So, here

\(= \sqrt{18^2 + 24^2}\\\\ = \sqrt{324 + 576} \\\\= \sqrt{900}\)

= 30 inches

Therefore, The length should be option d 30 inches.

Learn more about triangle here: https://brainly.com/question/9721655