# GEOMETRY APPLIES!!!!!!!

## Perpendicular Lines

Perpendicular lines intersect and form four right angles.

Perpendicular lines are found everywhere- even on road signs! ## Intersecting Lines

Intersecting lines intersect and form 2 acute angles and 2 obtuse angles.

Even power lines intersect!  ## Triangles Triangles have 3 sides.

Their sides ALWAYS add up to 180 degrees.

There are five types of triangles.

## Acute Triangles

All angles in this triangle are less than 90 degrees. ## Obtuse/ Scalene Triangle

Obtuse triangles have one obtuse angle and two acute angles. ## Right Triangle

Right triangles have one right angle and two acute angles ## Icosceles Triangle

An isosceles triangle has two congruent sides and two congruent angles. ## Equilateral Triangle

An equilateral triangle has ALL congruent sides and angles. All sides are 60 degrees. ## Qudrilaterals Quadrilaterals have 4 sides and 4 angles.

## Rectangles

Rectangles have 4 right angles.

Its opposite sides are parallel.

Its opposite sides are also congruent. ## Parallelogram

Parallelograms have two pairs of parallel sides.

Their opposite sides are congruent. ## Trapezoid

Trapezoids have exactly one pair of parallel sides. ## Rhombus

Rhombuses have 4 congruent sides. ## Square

The square has all equal sides.

It can be a rhombus, parallelogram, or a rectangle.

A square is also a regular polygon. ## Angles

There are five types of angles.

## The Acute Angle

Acute angles are less than 90 degrees.

They can be found everywhere!  ## The Obtuse Angle

Obtuse angles are more than 90 degrees.  ## The Right Angle

Right angles are EXACTLY 90 DEGREES. ## The Straight Angle

Straight angles are EXACTLY 180 DEGREES.

They are basically just a straight line. They are also found in real life, too. ## The Reflex Angle

The reflex angle measures more than 180 degrees. ## Reflex Angles in Real Life

They also can be found in real life. ## This is a great flyer, but I have to take a break...................... 