Answer:
D) 17
Step-by-step explanation:
Each angle of rectangular frame is 90°. So, to find the diagonal of the frame, we can use Pythagorean theorem.
Diagonal of the frame is the hypotenuse.
Length of the frame is the base.
Width of the frame is the altitude.
Pythagorean theorem,
hypotenuse² = base² + altitude²
= 15² + 8²
= 225 + 64
= 289
Take square root,
[tex]\sf hypotenuse = \sqrt{289} = \sqrt{17*17}\\\\hypotenuse = 17\\\\\boxed{\bf diagonal = 17 \ inches}[/tex]
