Answer:
a = 28 / √2
Step-by-step explanation:
Isosceles triangle therefor a = b
use pythagorean theorem
a² + a² = c²
2a² = 28²
a² = 28² / 2
Take the square root of both sides
a = 28 / √2
This is impossible and it is not even an equation since
Where's the system? I can't answer your question without it.
$ 295 because you can multiple 15×19.7 is =295.5