What do you know about triangles?

Slides:



Advertisements
Similar presentations
Triangles TOPIC 9 LESSON 9-5.
Advertisements

TRIANGLES AND TYPES OF TRIANGLES
Mathematics Types of Triangles By: Jenny Ordonez.
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.
Warmup – grab a book Room , submit answers for x and y.
EQUILATERAL & ISOSCELES Quiz tomorrow. CLASSIFY the triangle by ANGLES and SIDES Angles: acute, obtuse, right Sides:equilateral, isosceles, scalene 91.
- Four sides - Four angles - Four vertices  - The diagonals are equal in length and perpendicular and bisect each other.
Triangle A polygon with three sides and three angles. A triangle can be names by its’ side lengths and angles. – Side lengths: isosceles, equilateral,
Classifying Triangles 9 th Grade Geometry Ms. Garner Click to Learn!
©G Dear2008 – Not to be sold/Free to use
TRIANGLES AND TYPES OF TRIANGLES. A triangle has three sides.
Types of Triangles. Equilateral Triangle All sides are the same length and all the angles are the same length.
Triangles Sum.
TRIANGLES SPI: Identify, define or describe geometric shapes given a visual representation or written description of its properties.
Triangles Who Wants To Be A Millionaire? Question 1.
Warm Up Types of Triangle Chapter 3.6 Objective- name the various types of triangles and their parts.
Exploring Angles in a Triangles Chapter 8 Lesson 4 Image Taken from:
Triangles Shapes with 3 sides! Equilateral Triangle All 3 Sides are equal in Length All 3 interior angles are the same.
Equilateral, Isosceles, Scalene, Right, Acute, Obtuse Types of Triangles.
Triangles Objective: Learn to name and classify triangles.
Time for Triangles. What is a triangle? A triangle is a polygon. It has 3 sides and 3 angles. It can also be called a trigon.
Classifying Triangles How many degrees can be found in all triangles? 180 We can classify triangles 2 ways: By their angles By their sides.
Classifying Triangles Lesson Classifying by Angle Acute triangles have three acute angles. Obtuse triangles have one obtuse angle. Right triangles.
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 Chapter What is the sum of the angles inside a triangle? 180º? Prove it m Given A B C Angle Addition Postulate/Definition of a Straight.
4.1 Triangle Angle Sum and Properties. How many degrees in a triangle? The sum of the angles in any triangle is exactly 180 degrees.
Mathematics Types of Triangles.
Who Wants To Be A Millionaire?
Triangles.
Angles In Triangles Types of Triangles Isosceles triangle
Triangles.
Classifying Triangles by sides and angles
Classify the triangle by its angles and by its sides.
Triangles.
Classifying Triangles
Triangles.
Geometry 4.1 Triangle and Angles.
Classifying Triangles
Angles In Triangles Types of Triangles Isosceles triangle
TRIANGLES AND TYPES OF TRIANGLES
Triangles.
Classifying Triangles
Triangles Created by G. Antidormi 2005.
Identify type of triangle
Angles In Triangles Types of Triangles Isosceles triangle
Geometry.
Types of Triangles.
Right Triangle Definition: A triangle with one 90 degree angle.
Classifying Triangles
Classifying Triangles

Objective - To classify triangles.
Triangles Guided Notes
What do you know about triangles?
Identify type of triangle
Drill 1) x = 180, solve for x 2) How many degrees do the interior angles of a triangle add up to. 3) What type of triangle has an angle that.
Triangles.
Front of Flipbook Right Triangles Acute Triangles Obtuse Triangles
Triangles Teacher Twins©2014.
Triangles Teacher Twins©2014.
Classifying Triangles
Equilateral – equal All sides are equal length.
Classifying Triangles
3-4 Triangles.
Presentation transcript:

What do you know about triangles? Triangles—Quick Quiz What do you know about triangles? Let’s find out! Get READY!!!

Match the name with the type of triangle. 1. Equilateral 2. Obtuse 3. Isosceles 4. Right a. b. c. d.

5. A scalene triangle has_____ a. All sides equal b. All sides unequal c. Two sides equal

6. The interior angles of a triangle equal______. a. 360 degrees b. 150 degrees c. 180 degrees

7. What’s the measure of the missing angle? 60°

8. What’s the measure of the missing angle? 30° 75°

9. What’s the measure of the missing angle? 40° 20 °

10. What kind of triangle is this?

ANSWERS Check your work.

Match the name with the type of triangle. 1. Equilateral—c. 2. Obtuse—b. 3. Isosceles—d. 4. Right—a. a. b. c. d.

5. A scalene triangle has_____ a. All sides equal b. All sides unequal c. Two sides equal

6. The interior angles of a triangle equal______. a. 360 degrees b. 150 degrees c. 180 degrees

7. What’s the measure of the missing angle? 60° 60°

8. What’s the measure of the missing angle? 30° 75° 75°

9. What’s the measure of the missing angle? 40° 120° 20 °

10. What kind of triangle is this? Scalene triangles have NO sides equal.

Which one are YOU? Triangles from 3dUniverse and Caligreal