Respuesta :
This is a problem that uses the Pythagorean Theorem.
[tex]a = \sqrt{ {b}^{2} + {c}^{2} } \\ a = \sqrt{ {7}^{2} + {24}^{2} } \\ a = \sqrt{49 + 576} \\ a = \sqrt{625} \\ a = 25[/tex]
The hypotenuse is 25 feet.
[tex]a = \sqrt{ {b}^{2} + {c}^{2} } \\ a = \sqrt{ {7}^{2} + {24}^{2} } \\ a = \sqrt{49 + 576} \\ a = \sqrt{625} \\ a = 25[/tex]
The hypotenuse is 25 feet.

Answer:
The third piece of wood that for denesh need to create to form a right triangle is:
25 feet.
Step-by-step explanation:
We are given two shorter legs of a wood of lengths as:
7 feet and 24 feet.
We know that in a right angled triangle with two shorter sides as a and b the longer length or the hypotenuse of the triangle of length c is given by Pythagorean Theorem as:
[tex]c^2=a^2+b^2[/tex]
We have:
a=7 and b=24
Hence,
[tex]c^2=7^2+(24)^2\\\\\\c^2=49+576\\\\\\c^2=625\\\\\\c=25[/tex]
Hence, the length of the third piece of wood should be:
25 feet.