Respuesta :

It’s obtuse

Explanation:
Assign the sides by length with c being longest
If (a^2)+(b^2)>(c^2) it’s acute

If (a^2)+(b^2)=(c^2) it’s right

And if (a^2)+(b^2)<(c^2) it’s obtuse

Since (3^2)+(9^2)=9+81=90
And 10^2=100 we know that (a^2)+(b^2)<(c^2) so it’s obtuse

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