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Glencoe Math: Course 3, Volume 2

GM

Glencoe Math: Course 3, Volume 2 View details

3. Angles of Triangles

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Exercise 19 Page 395

The sum of the measures of the interior angles of a triangle is $18 0^{\circ} .$

$5 0^{\circ}$

Practice makes perfect

We are told that a triangle has angles measuring $7 0^{\circ},$ $6 0^{\circ},$ and $x^{\circ} .$ We want to find the values of $x .$ To do it, let's first recall a key piece of information!

Angle Sum of a Triangle
The sum of the measures of the interior angles of a triangle is $18 0^{\circ} .$

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Subchapter links

Guided Practice p.392

Independent Practice p.393-394

H.O.T. Problems p.394

Standardized Test Practice p.394-396

Extra Practice p.395

Common Core Review p.396