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Glencoe Math: Course 2, Volume 2 View details

2. Complementary and Supplementary Angles

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Exercise 25 Page 550

Recall the classification of quadrilaterals.

Graph:

Name: Square

Practice makes perfect

Let's plot the given points on a coordinate plane and graph the quadrilateral.

To determine the most precise name for our quadrilateral, let's review the classification of quadrilaterals.

Quadrilateral	Definition
Parallelogram	Both pairs of opposite sides are parallel
Rhombus	Parallelogram with four congruent sides
Rectangle	Parallelogram with four right angles
Square	Parallelogram with four congruent sides and four right angles
Trapezoid	Quadrilateral with exactly one pair of parallel sides
Isosceles Trapezoid	Trapezoid with legs that are congruent
Kite	Quadrilateral with two pairs of consecutive sides congruent and no opposite sides congruent

We can see that the quadrilateral has two pairs of parallel sides and four right angles. The figure is either a rectangle or a square. To check, we can find the lengths of its sides. Let's count the units in each side.

We can tell that the side lengths of all sides are equal. This means that our quadrilateral is a square.

Subchapter links

Guided Practice p.546

Independent Practice p.547-548

H.O.T. Problems p.548

Standardized Test Practice p.548-550

Extra Practice p.549

Common Core Review p.550

Exercise 25 Page 550

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