An absolute value equation has no solution if the absolute value expression equals a negative number since an absolute value can never be negative. You can write an absolute value inequality as a compound inequality. This holds true for all absolute value inequalities.
Algebra 1 ...www.mathplanet.com this is the sight i got the explaination from to help me explain it to u
You have to make sure it is a triangle by adding the smallest and the medium sides, if the result is greater than the bigger side then it is a triangle.
you then use the Pythagorean theorem to check if the triangle is a right triangle, acute, or obtuse. If = then it is a right triangle. If then it is an obtuse triangle. if then it is an acute triangle.
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9+64_100
70_100
70<100
in this case is greater than therefore, is it an obtuse triangle.