Respuesta :

since one angle is 90° and other is 45° ...so by angle sum property the third angle is also 45° ..


There is a theorem which states equal angles in a triangle have their opposite sides equal...hence base is also 6 ...then by Pythagoras Theorem..... x=√72=6√2

Answer:

x==6sqrt(2)

Step-by-step explanation:

the remaining unknown angle = 180-90-45 = 45deg.

so the right-angled triangle is also isosceles

the remaining unknown side = 6

x=sqrt(6^2+6^2)

=6sqrt(2)