Holt Geometry 11-3 Sector Area and Arc Length 11-3 Sector Area and Arc Length Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson.

Slides:



Advertisements
Similar presentations
Objectives Find the area of sectors. Find arc lengths.
Advertisements

Sector Area and Arc Length
Geometry Sector Area and Arc Length
Using Formulas in Geometry
Using Formulas in Geometry
Area of a sector and segment of a circle
Warm Up 1. Find w, y, and z. Give the answers in simplest radical form.
CIRCLES.
11-5 Area or Circles and Sectors Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.
RECALL: What is the formula for the area of a circle? You eat an entire pizza (8 slices) with a radius of 8inches. How much pizza (area) did you eat? If.
Distance around the circle 2  r = C or d  = C.
105  32   16  36.5  105  Warm-up Find the measures of angles 1 – 4.
Sector Area and Arc Length
Sector Area and Arc Length
Warm Up 1. Find w, y, and z. Give the answers in simplest radical form.
Sector Area and Arc Length
9-2 Developing Formulas for Circles and Regular Polygons Warm Up
Chapter 4: Circular Functions Review for Lessons 1 & 2 Mrs. Parziale.
Warm Up Evaluate. Round to the nearest hundredth
Holt Geometry 11-3 Sector Area and Arc Length 11-3 Sector Area and Arc Length Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson.
Sector Area, Arc Length, Sector Volume White board / cut problems.
Holt McDougal Geometry 11-3 Sector Area and Arc Length Toolbox Pg. 767 (12-20; 33 why 4 )
LESSON Today: Assignment 11.3 Instruction 16 30° 20 Warm-up: Find the area. 160 u 2.
Holt McDougal Geometry 1-5 Using Formulas in Geometry 1-5 Using Formulas in Geometry Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation.
Section 11-3 Sector Area and Arc Length. The area of a sector is a fraction of the circle containing the sector. To find the area of a sector whose central.
Objectives Find the area of sectors. Find arc lengths.
Sector Area and Arc Length
Sector Area and Arc Length in Circles
Objectives Find the area of sectors. Find arc lengths.
Sector Area and Arc Length
Sector Area and Arc Length
Sector Area and Arc Length
Warm Up 1. Find w, y, and z. Give the answers in simplest radical form. Find each measure. 2. RT 3. UQ.
Using Formulas in Geometry
Using Formulas in Geometry
Sector Area and Arc Length
Sector Area and Arc Length
Similarity in Right Triangles
12.3 Sector Area and Arc Length
Sector Area and Arc Length
11.2 Vocabulary Population Density Sector of a Circle
Warm Up #1 Find each measure. Give answers in terms of  and rounded to the nearest hundredth. 1. area of sector LQM 7.5 in2  in2 2. Find the area.
Sector Area and Arc Length
Sector Area and Arc Length
Objectives Find the area of sectors. Find arc lengths.
12.3 Sector Area and Arc Length
Sector Area and Arc Length
Objectives Find the area of sectors..
Warm Up Find each measure. TQ is a diameter 1. RT 54 2. UQ.
Using Formulas in Geometry
Sector Area and Arc Length
Using Formulas in Geometry
Sector Area and Arc Length
Using Formulas in Geometry
A segment of a circle is a region bounded by an arc and its chord.
Warm Up: Do at the beginning of 12.3 notes
Sector Area and Arc Length
Warm Up #1 Find each measure. Give answers in terms of  and rounded to the nearest hundredth. 1. area of sector LQM 7.5 in2  in2.
ANSWERS WILL BE IN SQUARE UNITS
Sector Area and Arc Length
11.2 Vocabulary Population Density Sector of a Circle.
Sector Area and Arc Length
Sector Area and Arc Length
Using Formulas in Geometry
Sector Area and Arc Length
Finding Arc Lengths and Areas of Sectors
Sector Area and Arc Length
L.T. 11.3: Find the area of sectors
Sector Area and Arc Length
Sector Area and Arc Length
Presentation transcript:

Holt Geometry 11-3 Sector Area and Arc Length 11-3 Sector Area and Arc Length Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz

Holt Geometry 11-3 Sector Area and Arc Length Warm Up Find w, y, and z. Give the answers in simplest radical form.

Holt Geometry 11-3 Sector Area and Arc Length Find the area of sectors. Find the area of segments. Objectives

Holt Geometry 11-3 Sector Area and Arc Length sector of a circle segment of a circle Vocabulary

Holt Geometry 11-3 Sector Area and Arc Length Note 71

Holt Geometry 11-3 Sector Area and Arc Length Write the degree symbol after m in the formula to help you remember to use degree measure not arc length. Helpful Hint

Holt Geometry 11-3 Sector Area and Arc Length Find the area of each sector. Give answers in terms of . Example 1A: Finding the Area of a Sector sector HGJ

Holt Geometry 11-3 Sector Area and Arc Length Check It Out! Example 1a Find the area of each sector. Give your answer in terms of . sector ACB

Holt Geometry 11-3 Sector Area and Arc Length Check It Out! Example 1b Find the area of each sector. Give your answer in terms of . sector JKL

Holt Geometry 11-3 Sector Area and Arc Length A windshield wiper blade is 18 inches long. To the nearest square inch, what is the area covered by the blade as it rotates through an angle of 122°? Example 2: Automobile Application

Holt Geometry 11-3 Sector Area and Arc Length A segment of a circle is a region bounded by an arc and its chord.

Holt Geometry 11-3 Sector Area and Arc Length Find the area of segment LNM to the nearest hundredth. Example 3: Finding the Area of a Segment

Holt Geometry 11-3 Sector Area and Arc Length Check It Out! Example 3 Find the area of segment RST to the nearest hundredth.

Holt Geometry 11-3 Sector Area and Arc Length Exit Slip Find each measure. Give answers in terms of . 1. area of sector LQM 7.5 in 2  in 2 2. Find the area of segment GHJ to the nearest hundredth.  m 2