hi i really need help with my geometry please
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Answer:
Step-by-step explanation:
since the base angles of a triangle are equal the given triangle an isosceles triangles.
therefore side x is also 9 because the two sides of an isosceles triangle is equal.
Now for side y
using pythagoras theorem
a^2 + b^2 = c^2
9^2 + 9^2 =y^2
81 + 81 = y^2
162 = y^2
[tex]\sqrt{162}[/tex] = y
[tex]9\sqrt{2}[/tex] =y