Different Types of triangle Classifications~~.

Slides:



Advertisements
Similar presentations
TRIANGLES AND TYPES OF TRIANGLES
Advertisements

Apply Triangle Sum Properties
Classifying Triangles
Classifying Triangles. What do we remember about classifying angles? What are the different types of angles? Acute, right, obtuse, and straight.
HOW MANY SIDES ARE THERE, AND WHAT IS THEIR ANGLE?
Classifying Triangles Students will classify triangles using the lengths of the sides and the angles. S. Calahan October 2010.
Classify Triangles Standard 4C.
Wednesday, September 26, 2012 Homework: p. 185 #31, 34, 43 & 44 (36-42 mentally)
Section 4.1 Classifying Triangles
Triangles 11.2.
Classifying Triangles Add the following to your math notes.
Classifying Triangles
4-2 Identifying Triangles
4.1 Classifying Triangles. Students will be able to… - Classify triangles by their angle measures and side lengths. - Use triangle classification to find.
GEOMETRY 4-1 Classifying Triangles. 4-1 Classifying Triangles By angle measures: Acute Triangle: 3 acute angles Right Triangle: 1 right angle Obtuse Triangle:
Triangle A polygon with three sides and three angles. A triangle can be names by its’ side lengths and angles. – Side lengths: isosceles, equilateral,
4-1 Classifying Triangles
Triangle Classification. Objectives Classify triangles by their angle and side measures Find the sum of the measure of the interior and exterior angles.
Warm Up Classify each angle as acute, obtuse, or right If the perimeter is 47, find x and the lengths of the three sides. right acute x =
Classifying Triangles
GEOMETRY 4-1 Classifying Triangles. Acute Triangle Three acute angles Triangle Classification By Angle Measures.
Goal, to classify triangles by their sides and by their angles.
TRIANGLES AND TYPES OF TRIANGLES. A triangle has three sides.
Triangles Who Wants To Be A Millionaire? Question 1.
Classifying Triangles
Classifying Triangles Classifying by Angles: Acute - 3 acute angles Obtuse - 1 obtuse angle Right - 1 right angle Equiangular – An acute triangle with.
Equilateral, Isosceles, Scalene, Right, Acute, Obtuse Types of Triangles.
Warm Up # 4 Classify and name each angle. 1 ab c d.
Find the value of x. 1. x + 2x + 3x = 180 6x = x + x + 40 = x + (x + 1) + 35 = x + 40 = 180 x = 70 3x + 36 = x = 48.
Classifying Triangles How many degrees can be found in all triangles? 180 We can classify triangles 2 ways: By their angles By their sides.
Holt Geometry 4-1 Classifying Triangles 4-1 Classifying Triangles Holt Geometry.
Classifying Triangles. Two Ways to Classify Triangles  By Their Sides  By Their Angles.
Scalene triangle: A scalene triangle is a triangle that has no equal sides. The following is a scalene triangle.
Lesson 8.3 Concept: How to classify triangles by their sides and angles. An equilateral triangle has three sides of the same length. An isosceles triangle.
Triangles The sum of the measures of the angles of a triangle is 180 degrees. m A + m B + m C = 180 o A BC An angle formed by a side and an extension.
UNIT 4: TRIANGLE CONGRUENCE 4.1 Classifying Triangles.
Holt McDougal Geometry 4-1 Classifying Triangles Toolbox Pg. 219 (12-19;30-32; 35-37; 42 why 4 ;55-58 )
Who Wants To Be A Millionaire?
Objectives Classify triangles by their angle measures and side lengths. Use triangle classification to find angle measures and side lengths.
Section 4-1 Triangles and Angles.
Objectives Classify triangles by their angle measures and side lengths. Use triangle classification to find angle measures and side lengths.
Classify the triangle by its angles and by its sides.
Classifying Triangles
Triangles: Classifications, Angles and More
CLASSIFICATIONS, ANGLES AND MORE!!
Classifying Triangles
Classifying Triangles
TRIANGLES AND TYPES OF TRIANGLES
Triangles.
CLASSIFICATIONS, ANGLES AND MORE!!
Classifying Triangles
Classifying Triangles
Right Triangle Definition: A triangle with one 90 degree angle.
Classifying Triangles
Objectives Classify triangles by their angle measures and side lengths. Use triangle classification to find angle measures and side lengths.
Objective - To classify triangles.
Triangles Guided Notes
Add up all the sides Perimeter of Area of a Rectangle: ANY polygon:
Classify by the angle measure
Classifying Triangles
Objectives Classify triangles by their angle measures and side lengths. Use triangle classification to find angle measures and side lengths.
Triangles 7.3.
4-1 Vocabulary Acute triangle Equiangular triangle Right triangle
CN#1 Classifying Triangles
Classifying Triangles
Classifying Triangles
Classifying Triangles
4-1 Classifying Triangles
Triangles 7.3.
Presentation transcript:

Different Types of triangle Classifications~~

An acute triangle are 3 angles that are less than 90 degrees. 40 30 20 Real Life example: Angle Measure

A Equiangular Triangle, has 3 congruent acute angles less than 90 degrees. 60 60 60 Real Life example: Angle Measure

The Right triangle is a triangle that has the angle of 90 degrees. Real Life example: 90 degrees 90 degrees Angle Measure

An Obtuse Triangle is a triangle that it’s measures are over 90 degrees. 110 Real Life example: Angle Measure

We use this types of triangles to put them into categories of measurements, the triangles can be put into categories depending on the degrees that the triangles have.

CLASSIFY (example) Triangle ADB 70 40 A B C D Triangle ADB Angle ADC is a right angle. Triangle ADC is a right triangle. Triangle ABD Angle ABD & Angle DBC form a linear pair and they are supplementary. So m.Angle ABD + m.Angle BDC = 180. Substitute: m.Angle ABD + 70 =180 180 – 70 = 110, so m.Angle ABD = 110. The Triangle ABD is an Obtuse Triangle because the degree is over 90.

CLASSIFY (example) Obtuse Triangle Right Triangle Acute Triangle Equiangular Triangle 130

An Equilateral Triangle is a triangle with 3 congruent sides. Side Lengths Real Life example:

An Isosceles Triangle has 2 congruent sides instead of all of them being congruent. Side Lengths Real Life example:

An Scalene Triangle is a triangle that has no congruent sides at all. Side Lengths An Scalene Triangle is a triangle that has no congruent sides at all. Real Life example:

CLASSIFY (example) D E F G 20 5 17 Triangle DEF In the figure, DE is congruent DF. So DF = 20, And triangle DEF is Equilateral. Triangle DEG Using the Segment + P. we can see that EG = EF + FG. Substitute 20 + 5 = 25 Triangle DEG is Scalene because none of the sides are congruent.

CLASSIFY (example) 2(0.9) + 6.8 = 8.6 8(0.9) + 1.4 = 8.6 2x + 6.8 = 8x + 1.4 -8x -8x -6x + 6.8 = 1.4 -6.8 -6.8 -6x = -5.4 /-6 /-6 2(0.9) + 6.8 = 8.6 8(0.9) + 1.4 = 8.6 X = 0.9

CLASSIFY (example) 6(6) = 36 4(6) + 12 = 36 36 = 36 2y = 4y + 12 /2 /2 6(6) = 36 4(6) + 12 = 36 36 = 36 y = 6