Answer:
Here is the complete question.(attachment)
The correct choice is [tex]a^2+15^2=17^2[/tex]
Step-by-step explanation:
We will apply the Pythagoras formula to calculate the perpendicular length (a).
Pythagoras formula [tex]=(base)^2+(perpendicular)^2=(Hypotenuse)^2[/tex]
The right angle is formed between [tex]a[/tex] and [tex]15\ m[/tex] length.
So [tex]17\ m[/tex] is the hypotenuse opposite to right angle is the longest side and called the hypotenuse.
So
[tex](a)^2+(15)^2=17^2[/tex]
[tex]a=\sqrt{17^2-15^2}= 8\ m[/tex]
So the measure of side length [tex]a[/tex] is [tex]8\ m[/tex].
That can be calculated from the option A that is [tex](a)^2+(15)^2=17^2[/tex].
Note:Please don't look to the marked answers that was wrong in the attachment.
