Pythagorean Theorem Converse Special Triangles. Pythagorean Theorem What do you remember? Right Triangles Hypotenuse – longest side Legs – two shorter.

Slides:



Advertisements
Similar presentations
4.6 Congruence in Right Triangles
Advertisements

4.6: Congruence in Right Triangles
CHAPTER 8 RIGHT TRIANGLES
1 Inequalities In Two Triangles. Hinge Theorem: If two sides of 1 triangle are congruent to 2 sides of another triangle, and the included angle of the.
TODAY IN GEOMETRY…  Practice: Solving missing sides using the Pythagorean Theorem  Learning Target 1: Use the Converse of the Pythagorean Theorem determine.
The Pythagorean Theorem. The Right Triangle A right triangle is a triangle that contains one right angle. A right angle is 90 o Right Angle.
Lesson 56: Special Right Triangles
Geometry Section 9.4 Special Right Triangle Formulas
Bell Ringer Get out your 10.5/10.7 homework assignment and formula sheet Get out your notebook and prepare to take notes on Section 11.2 What do you know.
5.1 Special Right Triangles. What you should already know… Right triangles have one 90 o angle The longest side is called the HYPOTENUSE  It is directly.
MM2G1. Students will identify and use special right triangles.
7.1 – Apply the Pythagorean Theorem. Pythagorean Theorem: leg hypotenuse a b c c 2 = a 2 + b 2 (hypotenuse) 2 = (leg) 2 + (leg) 2 If a triangle is a right.
Warm-up. Legs: Congruent sides Of an isosceles triangle Base: Third side of an Isosceles triangle Vertex Angle: the angle the two legs form Base Angle:
Lesson Handout #1-49 (ODD). Special Right Triangles and Trigonometric Ratios Objective To understand the Pythagorean Theorem, discover relationships.
30°, 60°, and 90° - Special Rule The hypotenuse is always twice as long as the side opposite the 30° angle. 30° 60° a b c C = 2a.
4-6 Congruence in Right Triangles M.11.C B
Congruence in Right Triangles
Triangles and Lines – Special Right Triangles There are two special right triangles : 30 – 60 – 90 degree right triangle 45 – 45 – 90 degree right triangle.
Congruence in Right Triangles Chapter 4 Section 6.
4.6 Congruence in Right Triangles In a right triangle: – The side opposite the right angle is called the hypotenuse. It is the longest side of the triangle.
8.2 Special Right Triangles
Triangle Sum Theorem The sum of the angle measures in a triangle is 180 degrees.
Pythagorean Theorem Chapter 3 – 5. What’s a, b, & c? a & b are the two sides that form the 90° angle a & b are also known as “legs” of a right triangle.
4.4 Pythagorean Theorem and the Distance Formula Textbook pg 192.
Rhombus. Properties of a Rhombus: A B C D All properties of a parallelogram All sides are congruent (equilateral) The diagonals are perpendicular The.
Honors Geometry Section 5.5 Special Right Triangle Formulas.
 Remember the pattern for right triangles: Area of small square + Area of medium square = Area of large square.
Pythagorean Theorem and Special Right Triangles. Anatomy of a Right Triangle Why is a right triangle called a right triangle? Because it is a triangle.
Pythagorean Theorem & its Converse 8 th Grade Math Standards M.8.G.6- Explain a proof of the Pythagorean Theorem and its converse. M.8.G.7 - Apply the.
8-2 Special Right Triangles Objective: To use the properties of and triangles.
7.1 – Apply the Pythagorean Theorem. Pythagorean Theorem: leg hypotenuse a b c c 2 = a 2 + b 2 (hypotenuse) 2 = (leg) 2 + (leg) 2 If a triangle is a right.
Lesson 8-4 Special Right Triangles (page 300) Essential Question How can you apply right triangle facts to solve real life problems?
– Use Trig with Right Triangles Unit IV Day 2.
Lesson 8-4 Special Right Triangles (page 300) Essential Question What is so special about the special right triangles?
Sect. 9.4 Special Right Triangles Goal 1 Side Lengths of Special Right Triangles Goal 2 Using Special Right Triangles in Real Life.
Pythagorean Theorem and it’s Converse
5.1 Special Right Triangles
Special Right Triangles
If we take an equilateral (and equiangular) triangle
Solving sides of special right triangles
Special Right Triangles
8-2 Special Right triangles
Inequalities in Two Triangles
Midpoint And Distance in the Coordinate Plane
5.1 Special Right Triangles
12-2 The Pythagorean Theorem
Proving Theorems about Isosceles Triangles (5.6.2)
8-2 Special Right Triangles
7.1 Apply the Pythagorean Theorem
Section 5.5: Special Right Triangles
8-3 Special Right Triangles
5-7 The Pythagorean Theorem
The Pythagorean Theorem
7-4: special right triangles
Honors Geometry Section 4.4 Isosceles Triangle Theorem
Right Triangles Unit 4 Vocabulary.
Objective: To use the properties of 45°-45°-90° triangles.
4-6 Congruence in Right Triangles
6.5 Pythagorean Theorem.
Special Right Triangles
Chapter 3: Solving Equations
Warm-up Find the missing length of the right triangle if a and b are the lengths of the legs and c is the length of the hypotenuse. a = b = a = 2.
5.1 Special Right Triangles
The Pythagorean Theorem
7.3 Special Right Triangles
Lesson 3-2 Isosceles Triangles.
Chapter 4 Congruent Triangles.
7-3 Special Right Triangles
Even ANSWERS TO HOMEWORK
Presentation transcript:

Pythagorean Theorem Converse Special Triangles

Pythagorean Theorem What do you remember? Right Triangles Hypotenuse – longest side Legs – two shorter sides

Right Triangle Hypotenuse = c Legs are a and b Remember how to determine which leg will be longer longer leg across from larger angle

Type of Triangle We also discussed other types of triangles that could be formed using a version of Pythagoreans Theorem

Example

Special Right Triangles Isosceles Right Triangle Two sides are congruent Two angles are congruent Can you prove this

Proof

Special Right Triangle Short leg across from 30 Long leg across from 60 Hypotenuse across from 90

Proof

Homework Pg 481 2,4,6,12,14 Honors 17 and 18 Pg Type, 7-15 odd Honors 18 and 19 Pg