Chapter 8: Right Triangles & Trigonometry 8.2 Special Right Triangles.

Slides:



Advertisements
Similar presentations
8.2 Special Right Triangles
Advertisements

AB C D Clickers x. AB C D x  Today we’re going to be working with some special right triangles that occur within other geometric figures  The ratios.
Use the 45°-45°-90° Triangle Theorem to find the hypotenuse.
Geometry Agenda 1. ENTRANCE 2. Go over Tests/Spiral
WARM UP: What is the length of the hypotenuse of triangle RST?
Special Right Triangles Chapter 7.4. Special Right Triangles triangles triangles.
Warm-up 1.An isosceles triangle has ________. 2.Find the value of x. xoxo xoxo two congruent sides 45 o.
Special Right Triangles Keystone Geometry
CHAPTER 8 RIGHT TRIANGLES
EXAMPLE 1 Using a 45 o –45 o –90 o Triangle Softball The infield of a softball field is a square with a side length of 60 feet. A catcher throws the ball.
Special Right Triangles
Unit 7 Part 2 Special Right Triangles 30°, 60,° 90° ∆s 45°, 45,° 90° ∆s.
Geometry Section 9.4 Special Right Triangle Formulas
Special Right Triangles EQ: How do you use the properties of special right triangles in real world applications? M2 Unit 2: Day 2.
Right Triangles and Trigonometry Chapter 8. Pythagorean Theorem a 2 + b 2 = c 2 right triangle a 2 + b 2 < c 2 obtuse triangle a 2 + b 2 > c 2 acute triangle.
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.
Geometry Section 7.4 Special Right Triangles. 45°-45°-90° Triangle Formed by cutting a square in half. n n.
Chapter 7.4 Notes: Special Right Triangles
Special Right Triangles
Warm Up Find the value of x. Leave your answer in simplest radical form. 7 x 9 x 7 9.
Warm Up Find the value of x. Leave your answer in simplest radical form. x 9 7 x.
L.E.Q. What special properties are associated with special right triangles?
- Special Right Triangles Chapter 4 Understanding Trigonometric Functions Language Objectives: We will review Special Right Triangles by do worksheet 11A.
7.4.1 SPECIAL RIGHT TRIANGLES Chapter 7: Right Triangles and Trigonometry.
8.2 Special Right Triangles
Example The hypotenuse of an isosceles right triangle is 8 ft long. Find the length of a leg. Give an exact answer and an approximation to.
Week 12 day 1 2 The graph shows the height of a tennis ball from the time it is served to the time it hits the ground on the other side of the net. How.
8-2 Special Right Triangles. Problem 1: Finding the Length of the Hypotenuse What is the value of each variable?
8.2 Special Right Triangles. Side lengths of Special Right Triangles Right triangles whose angle measures are 45°-45°-90° or 30°- 60°-90° are called special.
Section 7 – 3 Special Right Triangles
Special Right Triangles Keystone Geometry
Special Right Triangles Advanced Geometry Trigonometry Lesson 2.
Honors Geometry Section 5.5 Special Right Triangle Formulas.
Pythagorean Theorem Converse Special Triangles. Pythagorean Theorem What do you remember? Right Triangles Hypotenuse – longest side Legs – two shorter.
EXAMPLE 2 Use the Pythagorean theorem A right triangle has one leg that is 2 inches longer than the other leg. The length of the hypotenuse is 10 inches.
Geometry Mr. Jacob P. Gray Franklin County High School 8.2 Special Right Triangles Click for next Slide.
Area Chapter 7. Area of Triangles and Parallelograms (7-1) Base of a triangle or parallelogram is any side. Altitude is the segment perpendicular to the.
Section 8.3 Special Right Triangles ! L.T.: Be able to find sides of triangles! Quick Review: Rationalize the following!
– 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?
Slide 9-1 Copyright © 2014 Pearson Education, Inc. 5.4 The Pythagorean Theorem CHAPTER 5.
Solving sides of special right triangles
Warm-Up Find x. 2x+12 =6 12x=24 √25 = x.
SOL 8.10 Pythagorean Theorem.
Lesson 7 – 3: Special Right Triangles
Special Right Triangles
8-2 Special Right triangles
Warm-Up! Find the length of the missing side. Write your answer in simplest radical form. 1.) 4 x
The Pythagorean Theorem
Finding the Hypotenuse
8-2 Special Right Triangles
Before: April 12, 2016 What is the length of the hypotenuse of
a2 + b2 = c2 Pythagorean Theorem c c b b a a
Objective- To solve problems involving the Pythagorean Theorem.
8-3 Special Right Triangles
Special Right Triangles
Pythagorean Theorem Pre-Algebra.
7-4: special right triangles
Special Right Triangles Keystone Geometry
Objective: To use the properties of 30°-60°-90° triangle.
Special Right Triangles
Objective- To solve problems involving the Pythagorean Theorem.
Objective: To use the properties of 45°-45°-90° triangles.
Special Right Triangles
right triangles Some right triangles are used so frequently that it is helpful to remember some of their properties. These triangles are called.
Special Right Triangles
5.1 Special Right Triangles
7-3 Special Right Triangles
7-3 Special Right Triangles
Presentation transcript:

Chapter 8: Right Triangles & Trigonometry 8.2 Special Right Triangles

Isosceles Right Triangles What are the angle measures of an isosceles right triangle?

Theorem Triangle Theorem –In a triangle, both legs are congruent and the length of the hypotenuse is √2 times the length of a leg

Example 1 Find the value of h:

Example 1 Find the value of x:

Example 1a Find the length of the hypotenuse of a triangle with legs of length 5√3.

Example 2 What is the value of x?

Example 3 A high school softball diamond is a square. The distance from base to base is 60 feet. To the nearest foot, how far does a catcher throw the ball from home plate to second base?

Example 3a A square garden has sides 100 ft long. You want to build a brick path along a diagonal of the square. How long will the path be?

Theorem Triangle Theorem –In a triangle, the length of the hypotenuse is twice the length of the shorter leg. The length of the longer leg is √3 times the length of the shorter leg.

Example 4 Find the value of each variable:

Example 4a Find the value of each variable:

Homework p , 9-14, 17-22