Area of Shapes.

Slides:

Advertisements

Similar presentations

Bell Work: Hunter ran 21 miles in three hours. What was his average speed in miles per hour?

Advertisements

All About Area By Ali Warren B-1. What is Area? Area is simply the size of a surface. It is measured in square units. Think about painting a 2D shape.

Polygons, Circles, and Solids

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.

FRONT- I50 sq. ft. BACK-150 sq. ft. SIDE-80 sq. ft. + SIDE-80 sq. ft. 460 sq. ft. 460 sq. ft. 460 ÷ 10 =46 gallons , x x 46.

Area Area is the amount of surface space that a flat object has.

Draw a composite shape that contains two rectangles

Areas of parallelograms, triangles, kites, trapezoids and rhombi.

Area of Irregular Figures

5-Minute Check 1 Find the perimeter of the figure. Round to the nearest tenth if necessary. The area of an obtuse triangle is square centimeters.

Area of Triangles and Trapezoids base altitude base.

Length= 10ft Width= 15ft Area= L*W Area= Shape= Rectangle Floor= Wood Floor= 150*5= $750.

Construction Math This presentation gives examples of scenarios one would use math in construction situations.

FINDING THE AREA OF A RECTANGLE SWBAT use the area formula for rectangles to solve real world problems.

Before - CarpetAfter - Tiles SCHOOL TO WORK. BY:ZACHARY AND JULIAN.

Lesson 7-1 Area of Parallelograms, Triangles, and Trapezoids.

The circumference of the circle is 50  feet. The area of the shaded region = ________ example 1 :

TILE MAN INSTALLS AGAIN! TILE INSTALLATION.

 Distance all the way around an object  Example: fence, backsplash, frame, border…  Perimeter is measured in linear units (ft, m, in)

1-8: Perimeter, Circumference and Area. Perimeter and Area Perimeter: Sum of the lengths of the sides of a polygon Called circumference for a circle Area.

Area and Perimeter: Working Backwards. Challenge 1 The height of a rectangle is twice the base. The area of the rectangle is 450 in 2. What is the height?

Warm Up 1)Simplify 7 – (5 – 3x) + 10x )Would the side lengths 60, 11 & 61 create a right triangle? 3)Find the length of a segment with endpoints.

Unit 5 PowerPoint Presentation Victoria Bell-Netzelman July 2011 – EDUC 5131.

Rhiannon Day and Larissa McBride.  Make A Plan For Finding An Area For The Floor To Be Tiled. Include The Geometric Formulas You Will Use To Find The.

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

1.7 Perimeter, Circumference, & Area

Definition: Rectangle A rectangle is a quadrilateral with four right angles.

Worktext p. 181 Worktext p ___ units × ___ units = ___ square units 1 6 units

Area: Parallelograms, Rectangles, Squares and Trapezoids.

#35. VOCABULARY Example 1: Estimating the Area of a Circle Estimate the area of the circle. Use 3 to approximate .

Unit 4 Solid Geometry Math II Area of 2D Shapes. Regular Shapes All sides are congruent, all angles are congruent.

By: Tyler Downing and Matthew Wall. OUR PLAN Our plan is to get the entire area of the kitchen (B*H), get the area of all of the cabinets together, and.

AREA: the space inside a polygon.

9-6 Area of Irregular Figures Warm Up Find the area of the following figures. 1. A triangle with a base of 12.4 m and a height of 5 m 2. A parallelogram.

or * * P =22 in P =40 cm

How many …?. What shape can you see? I can see some _____. Q1 Q1 stars.

Section 10.4 Areas of Polygons and Circles Math in Our World.

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.

Unit 8 – 3 Finding Perimeter and Area Regular polygons and simple shapes with algebraic expressions.

Lesson 29 Area of a Combined Figure. Get the Idea Sometimes, you need to find the area of a figure that is not a common shape. You can often do this by.

Name ____________Class_____ Date______ Area of Rectangles The ________ _ of a figure is the amount of surface it covers. It is measured in ________ __.

Devorah Corvo & Catalina Sinelli’s Dream house

Cell phone use is prohibited.

Area Perimeter Circumference

Warm-Up vocab: parallelogram

DREAM HOUSE Maydi Perez Nataly Mora P:5.

Warm Up Simplify 7 – (5 – 3x) + 10x + 11

Area and perimeter jeopardy TriangleRectangleTrapezoidCircle Circle Part II Final Jeopardy.

Introduction to Perimeter, Circumference and Area

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Area – Learning Outcomes

2.5 Formulas and Additional Applications from Geometry

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Area of Irregular Figures

2.6 “I can use strategies to develop formulas for determining perimeter and area of triangles, rectangles and parallelograms.”

By: Nitu and Devorah Professor Mingla Question #8

Area, Surface Area, Perimeter, Volume

Area Formula of a Square?

Pick the ride you are most comfortable with…

Area Formulas (fill in on your formula sheet)

Area & Perimeter.

Area of Composite Figures

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Objective : Learn to find the area of a triangle.

Area of Parallelograms and Triangles

Some helpful formulas:

Wreck Tangles Squares Parallel O’grams Try Angles Trap a Zoid 1 pt

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Presentation transcript:

Area of Shapes

Squares Formulas: A = s2 , L x W, or B x H

Triangles Formula: A= 1/2(B x H) B= Base H= Height

Circles Formula: A= πr2 = 3.14

Trapezoid Formula: A=1/2H(b1 + b2)

Where can I use it?

Area in Construction You Are the Contractor: You contract to install carpet in a living room. The room is 12 feet wide and 15 feet long. A closet in the room is three feet wide and three feet deep. How many square yards of carpet are needed to cover the floor and closet? (1 sq. yd. = 9 sq. ft.) Carpet costs $7.59 per square yard. You charge your client $11.00 an hour for labor and delivery. You estimate the job will take four hours. What will be your total costs for this job?