Number two could somebody help me out.
its not urgent im just trying to bring my grade up and i just need some help
ill give brainliest to the correct answer
i have to put this on art cuz nobody will answer on mathematics

Yes, number 2 would make a right triangle

Explanation:

So, you have to use pythagorean and theorem, which is a^2 + b^2 = c^2

So the equation would be 15^2___ 9^2 + 12^2

After squaring them and doing the maths, it would be 225___ 91 + 144

144 + 91 = 225, so since they're equal, it would be a right triangle.

If it were less than, it would be acute, and if it were greater than, it would be obtuse

your word would be isle.

isle is an island or peninsula especially a small one.

if you add the letter "a" you get aisle, which is a passage between 2 rows of something like chairs, shelves, or something else.