Geometry Time

Lets take a walk in geometry

In geometry has many different angle types

There is acute witch is less than 90 degrees. Then there is right and that angle is exactly 90 degrees. Then the obtuse is more than 90 degrees bur less than 180 degrees. And the straight angle is the easiest because it is exactly 180 degrees and it is a straight line.

The Acute Angle

This is the angle that is less than 90 degrees.

The Right Angle

This is the angle that is exactly 90 degrees

The Obtuse

This is an easy one because it is between 90 degrees and 180 degrees.

The Straight

This is the easiest angle it is exactly 180 degrees

Triangles the 3 sided figure

There is so many different types of triangles like acute triangles and right, obtuse, scalene, isosceles, and equilateral.

The acute triangle

This triangle has 3 acute angles

The right triangle

This triangle has 1 right angle and 2 acute angles.

The Obtuse Triangle

This triangle has 1 acute and 2 acute angles

The Scalene Triangle

This triangle has 0 congruent sides and 0 congruent angles

The Isosceles

2 congruent sides and 2 congruent angles

The Equilateral Triangle

All the sides are congruent and all the angles are congruent.

Quadrilaterals

The quadrilaterals are four sided polygons. The sum of all angles are 360 degrees.

Rectangle

Opposite sides are parallel all 4 sides are 90 degrees and the opposite sides are congruent.

Rohmbus

A rhombus is a quadrilateral and the opposite sides are parallel. Both sides and and angles are congruent.

Parallelogram

A parallelogram is a quadrilateral both sides and angles.And opposite sides are parrallel

Square

A square is a quadrilateral all angles are 90 degrees opposite sides are parallel and all sides are congruent.

Trapezoid

A trapezoid is a quadrilateral and has exactly one pair of parallel sides

Finding Missing Angles

How to find a Missing Angle

Finding missing angles are easy. In a triangle all the angles added together are 180 degrees. In a quadrilateral the angles added together equal 360 degrees. So you take the angles you have and add those together and then you subtract from 180 if it is a triangle and 360 if it is a quadrilateral.

Measuring Angles

Measuring angles

First you take your protractor and put the little point on the vertex and then line up the line on the protractor and then you decide if it is acute right or obtuse and straight. then if it is acute it has to be less than 90 degrees and if it is a right it has to 90 degrees. Then if you have a obtuse angle it has yo be more than 90 but less than 180 degrees. Then if there is a straight it is exactly 180 degrees