Area of Triangles and Trapezoids

Slides:

Advertisements

Similar presentations

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals

Advertisements

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Areas of Parallelograms. Parallelogram A parallelogram is a quadrilateral where the opposite sides are congruent and parallel. A rectangle is a type of.

Area of Trapezoids. A trapezoid can be thought of as half of a parallelogram also. Notice that when we put the 2 trapezoids together we get a parallelogram.

A tangram is an ancient Chinese puzzle made from a square

Perimeter The perimeter of a polygon is the sum of the lengths of the sides Example 1: Find the perimeter of  ABC O A(-1,-2) B(5,-2) C(5,6) AB = 5 – (-1)

Area of a rectangle: A = bh This formula can be used for squares and parallelograms. b h.

Unit 10 Review Area Formulas. FOR EACH FIGURE: IMAGINE the shape THINK of its AREA FORMULA.

Extension. Calculate the area and perimeter of each of these shapes. 5cm 9cm 3cm 2cm 10cm 7cm 1cm 7cm 2cm 12cm 13cm

Perimeter and Area. AD = 15 inAC = 13 inBD = 10 inDL = 11 in EI = 3 inCH = 4 in A B CD GH E F L K J I.

Bell Work Find the area of each figure. 5 in 9 in 13 in 6 in 16 in 22 in 10 in A = (13 + 9) 5 A = 11 5 A = (22) 5 A = 55 in² A = ( ) 10 A =

Finding the Area of Polygons Vocabulary Perimeter – The sum of all sides of the shape. Area – The total occupied space of a shape in units squared.

Areas of Parallelograms and Triangles

Areas of Parallelograms, Triangles and Trapezoids

Areas of Triangles, Parallelograms, & Trapezoids.

BELL RINGER 5 m 11 m 1. Area = ? 7ft. P = 30 ft. A = ? 2.

AREA OF TRIANGLES AND TRAPEZOIDS #34. You can divide any parallelogram into two congruent triangles. So the area of each triangle is half the area of.

Areas of Parallelograms and Triangles Geometry Unit 4, Lesson 1.

8-4 Area of Triangles and Trapezoids Learn to find the area of triangles and trapezoids.

Areas of Parallelograms & Triangles

UNIT 9: GEOMETRY – 6 TH GRADE LESSON 3: AREA OF TRIANGLES & TRAPEZOIDS.

Section aFind the area of a rectangle and a square. bFind the area of a parallelogram, a triangle, and a trapezoid. cSolve applied problems involving.

Area of Triangles and Trapezoids base altitude base.

U6L3 Area of Triangles & Trapezoids Do Now: Write in planner Get out homework to check/grade Set up for notes Find the circumference and area:

Chapter 8 - Area.

Review: Area of 2-D Shapes Keystone Geometry.

How to Find the Area of a Parallelogram Step 1, Plan: To find the area of a parallelogram, use the formula A = bh.

9-2 Area of Triangles and Trapezoids Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

10-2 Areas of Trapezoids, Rhombuses & Kites Objective: To find the area of a trapezoid, rhombus or kite Essential Understanding You can find the area of.

10.4 Area of Triangles and Trapezoids. You will learn to find the areas of triangles and trapezoids. Nothing new!

10-1: Area of Parallelograms and Triangles Objectives: To find the area of parallelograms and triangles To find the area of parallelograms and triangles.

Lesson 11.2 Area of Parallelograms and Triangles.

11-1 Areas of Parallelograms & Triangles Ms. Andrejko.

7-1 Areas of Parallelograms and Triangles M11.C G Objectives: 1) To find the area of a parallelogram and a triangle.

Area of Triangles and Quadrilaterals Basic equations and applying to irregular polygons.

Area and Perimeter Unit Area of 2-D Shapes.

square rectangle parallelogram trapezoid triangle.

10.1 Areas of Parallelograms and Triangles Area of a Rectangle – The area of a rectangle is the product of its base and height. – A = bh.

7MD1.4 Area of Parallelograms What you’ll learn: Find the area of parallelograms Remember a parallelogram is a quadrilateral with opposites sides parallel.

Finding the Area of Polygons Rectangles Parallelograms Triangles Trapezoids.

9.1 PERIMETER AND AREA OF PARALLELOGRAMS Objective: Students find the perimeter and area of parallelograms.

Warm Up 3-21  What are your goals for the last nine weeks?  What habits and behaviors do you need in order to reach your goals?

Chapter 10 Area Section 10.1 Areas of Parallelograms and Triangles.

1 cm Area is the number of unit squares needed to cover a region or surface. Area.

Holt Geometry 9-1 Developing Formulas for Triangles and Quadrilaterals Warm Up Find the unknown side length in each right triangle with legs a and b and.

Areas of Trapezoids, Rhombuses, and Kites Objective: 1.To find the areas of trapezoids, rhombuses, and kites.

How can you apply formulas for perimeter, circumference, and area to find and compare measures?

1 Area. Vocabulary  Area—The number of square units needed to cover a surface enclosed by a geometric figure.  Base—Any side of a parallelogram or triangle.

Area of Triangles and Trapezoids

Objectives Develop and apply the formulas for the areas of triangles and special quadrilaterals. Solve problems involving perimeters and areas of triangles.

Area of Parallelograms

Chapter 11 Areas of Plane Figures (page 422)

10.1 Areas of Parallelograms and Triangles

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Section 11-5: Areas of Triangles & Trapezoids

Area of Triangles and Trapezoids

Copyright © Cengage Learning. All rights reserved.

Click the mouse button or press the Space Bar to display the answers.

Perimeter and Area of Parallelograms

UNIT 8: 2-D MEASUREMENTS PERIMETER AREA SQUARE RECTANGLE PARALLELOGRAM

Geometry - Area Divisibility Rules

10.1 Areas of Parallelograms and Triangles

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Areas of Quadrilaterals and Triangles

Area of Parallelogram.

Areas of Parallelograms and Triangles

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Exercise 1 2 Evaluate xy when x = 7 and y =

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Areas of Parallelograms and Triangles

Presentation transcript:

Area of Triangles and Trapezoids #36

FYI You can divide any parallelogram into two congruent triangles. So the area of each triangle is half the area of the parallelogram. An altitude of a triangle is a perpendicular segment from one vertex to the line containing the opposite side. The length of the altitude is the height.

VOCABULARY

I DO (foldable) A= ½ bh OR A=bh/2 A= ½ h (b + b)

I DO (foldable) 10 yd 4 ½ yd 6 yd 4.3 cm 6 cm 3 cm 10.5 cm

WE DO (notes) 1) Find the area of the trapezoid.

YOU DO (classwork) ADV Area Group Activities 2D Shape and Sort Area and perimeter Match Up Calculating Area of Figures Review REG https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-area-triangle/v/intuition-for-area-of-a-triangle https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-geometry-topic/cc-6th-area/v/area-of-a-trapezoid-1