body{margin:0;} noscript{z-index: 10000; position: fixed; display: block; height: 100%; width: 100%; background: #fff;} noscript .fa{font-size: 40px; display:block; color: #daa520;} noscript div{margin-top: 6%; padding-left: 20px; padding-right: 20px; text-align: center;} ! You must have JavaScript enabled to use this site.

Dashboard

MH

McGraw Hill Integrated II, 2012 View details

5. The Triangle Inequality

Finish the assignment

Continue to next subchapter

Exercise 45 Page 451

Could you determine if the side lengths form a triangle? Could you classify the triangle? Are you able to know if the triangle is a right triangle?

See solution.

Practice makes perfect

If we are given three side lengths, by analyzing them we can say a few things.

Whether or not the side lengths actually form a triangle (Triangle Inequality Theorem).
Whether the triangle is equilateral, isosceles or scalene.
What the smallest and largest angle are (Theorem 5.9).
Whether or not the triangle is a right triangle (Pythagorean Theorem).