Warm-Up What are the 8 Standards of Mathematical Practices? Make sense of problems and persevere in solving them Reason abstractly and quantitatively Construct.

Slides:

Advertisements

Similar presentations

Common Core Mathematical Practices. People who are good in math… Make sense of problems.

Advertisements

Math Extension Activity JCPS Analytical and Applied Sciences.

Perimeter and Area of Rectangles, Squares and Triangles

1.6 Angle Relationships 9/10/12

Standards for Mathematical Practice

Mathematical Practices 1.Make sense of problems and persevere in solving them. 2.Reason abstractly and quantitatively. 3.Construct viable arguments and.

Agenda. Mathematical Practices 1. Make sense of problems and persevere in solving them. 2. Reason abstractly and quantitatively. 3. Construct viable arguments.

Areas of Rectangles and Parallelograms Areas of Triangles, Trapezoids and Kites.

9.1 Similar Right Triangles Geometry CCSS: G.SRT. 6.

Developing Formulas for Triangles and Quadrilaterals

Perimeter Area Volume.

18.2 Polygons. A polygon is a flat closed figure described by straight-line segments and angles. Polygons are named by the number of sides they contain.

Activity: 1)Draw a rectangle measuring 6cm by 3cm using a ruler in your notebook 2)Draw a triangle inside the rectangle so that: a) at least one side.

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

Objective: find the area of geometric figures and shaded regions. What area formulas must be memorized?

Area & Perimeter.

Jeopardy $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300

5.2: Areas of Triangles, Parallelograms and Trapezoids

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

Intro to Geometry in 2D These are your notes for Area of 2 Dimensional figures…Write & Draw EVERY detail as if I was at the front of class. Write down.

Section 9-4 Perimeter, Area, and Circumference.

Areas of Parallelograms and Triangles

Areas of Parallelograms, Triangles and Trapezoids

Areas of Rectangles and Parallelograms

Areas of Triangles, Parallelograms, & Trapezoids.

Area & Perimeter Perimeter The distance around a shape – The sum of the lengths of all the sides in a shape – Measured in units of length i.e. Feet,

Today we will derive and use the formula for the area of a triangle by comparing it with the formula for the area of a rectangle. derive = obtain or receive.

Exploring Area of Polygons

Area Formulas and Parallelograms

Holt CA Course Perimeter & Area of Parallelograms MG2.1 Use formulas routinely for finding the perimeter and area of basic two- dimensional figures.

6-1 Warm Up Problem of the Day Lesson Presentation

Perimeter and Area of Rectangles, Squares, and Triangles

Review: Area of 2-D Shapes Keystone Geometry.

Perimeter - the distance around a figure 6 cm 4 cm You can find the perimeter of any polygon by adding the lengths of all its sides. 4 cm + 4 cm + 6 cm.

Unit 5: Area and Volume Part I: Area

Area of a Rectangle A=LW Length times Width Length width = 20 cm =12 cm A=20 12 A=240 cm 2.

Do Now: Calculate the measure of an interior angle and a central angle of a regular heptagon.

9.4 Special Right Triangles

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.

Do Now What are the following formulas? Area of a Square: Area of a Rectangle: Area of a Parallelogram: Area of a Triangle: Area of a Trapezoid: Area of.

Ex. s + s + s + s = 4s = 24 ft Perimeter: P = 4 s Perimeter: P = 2l + 2 w Ex. l + w + l + w = (l +w) + (l + w) = (l + l) + (w + w) = 2l.

6.G.A.1 Find the area of right triangles, other triangles, special quadrilaterals, and polygons by composing into rectangles or decomposing into triangles.

Copyright©amberpasillas2010. Today we are going to find the Area of Parallelograms.

Perimeter & Surface Area Today’s lesson will cover…  finding perimeter and surface area of polygons  using formulas to solve problems involving surface.

Geometry, Quarter 2, Unit 2.3 Proving Theorems About Parallelograms Days: 11.

Perimeter, Circumference and Area. Perimeter and Circumference Perimeter : The distance around a geometric figure. Circumference: The distance around.

Finding the Area of Polygons Rectangles Parallelograms Triangles Trapezoids.

1.7 Perimeter, Area, & Circumference HMWK: pp. 55 – 57, #s 15 – 29 odd, 40 – 46 even Game Plan: Today I will be able to … Calculate area, perimeter, &

Parallelograms Lesson 10.3 Areas of Parallelograms and Triangles SWBAT: Develop, state & apply formulas for area of parallelograms and triangles.

Geometry 7-1a Area of Parallelograms. Vocabulary Area – The measure of a figure enclosed by the figure Base – Any side of a rectangle Height – Length.

Chapter 11: Areas of Polygons and Circles Sections 11.1 to 11.4.

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

Warm-Up List all of the characteristics of a rectangle. List all of the characteristics of a parallelogram.

Chapter 10 Area Section 10.1 Areas of Parallelograms and Triangles.

SWBAT: Find the area of a trapezoid and a rhombus.

6.10 POLYGONS AREA AND PERIMETER. A POLYGON IS A FLAT CLOSED FIGURE DESCRIBED BY STRAIGHT- LINE SEGMENTS AND ANGLES. Polygons are named by the number.

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

Rectangles, Parallelograms and Squares Area and Perimeter.

8th Grade Math Unit 8 Review

Perimeter, Area, and Circumference

Area of 2-Dimensional Figures

Copyright © Cengage Learning. All rights reserved.

9-1 C and D: Area of Triangles and Trapezoids

In a 40 minute period, Students will be able to find perimeters and areas of parallelograms and triangles using the appropriate formula and score 80% or.

Lesson 9-1 Area of 2-D Shapes.

Area Formula of a Square?

Lesson 9-1: Area of 2-D Shapes

Parallelogram: Sides opposite are parallel

Presentation transcript:

Warm-Up What are the 8 Standards of Mathematical Practices? Make sense of problems and persevere in solving them Reason abstractly and quantitatively Construct viable arguments and critique the reasoning of others Model with mathematics Use appropriate tools strategically Attend to precision Look for and make use of structure Look for and express regularity in repeated reasoning

Today’s Objective: G.GPE.B.7 Use coordinates to compute perimeters of polygons and areas of triangles and rectangles, e.g., using the distance formula.

Rectangle Area Conjecture: The area of a rectangle is given by the formula ____________, where A is the area, b is the length of the base, and h is the height of the rectangle. A = bh

Find the area of this shape

32 The area of the figure is 52 square units

Investigation: Area Formula for Parallelogram A parallelogram A straight edge A compass Scissors From the vertex of the obtuse angle adjacent to the base, draw an altitude to the side opposite the base. Label the parallelogram as shown.

Investigation: Area Formula for Parallelogram Cut along the altitude. You will have two pieces – a triangle and a trapezoid. Try arranging the two pieces into other shapes without overlapping them. Is the area of each of these new shapes the same as the area of the original parallelogram? Why? Is one of your new shapes a rectangle? Calculate the area of this rectangle. What is the area of the original parallelogram? State the conjecture.

Parallelogram Area Conjecture The area of a parallelogram is given by the formula ____________________, where A is the area, b is the length of the base, and h is the height of the parallelogram. A = bh

Let’s practice!!! A represents area and P represents perimeter. A = 2508 cm 2 P = ? 210 cm

Let’s practice!!! Find the area of the shaded region. A = 42 ft 2