Area of Polygons. Remember your special right triangles.

Slides:

Advertisements

Similar presentations

Let’s review our shapes….

Advertisements

Jeopardy Directions In Jeopardy, remember the answer is in the form of a question. Select a question by clicking on it. After reading the question, click.

Polygons Test Review. Test Review Find the missing angle. 50.

Rotational Symmetry All 2 dimensional shapes have some rotational symmetry. The degree of rotational symmetry that an object has is known as its order.

Lesson #45 Naming Polygons.

Let’s review our lessons so far! Julie Dill. What is a polygon? 1.An open figure with straight sides. 2.A closed figure with at least one curved side.

The Quads Copy down all of the notes in RED.. A trapezoid has 4 sides and exactly 1 pair of parallel sides.

BASIC 2-Dimensional SHAPES OF GEOMETRY

Measurement Jeopardy CirclesPerimeter Area 3-D Surface Area And Volume $100 $200 $300 $400 $500 $100 $200 $300 $400 $500.

Areas Advanced Geometry Areas and Volumes Lesson 1.

Circles/Triangles Sector Area/ Arc Length Formulas Special Quads Polygons

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

Surface Areas of Prisms and Cylinders Section 11.6.

Area of Parallelograms, Trapezoids, and Graphed Shapes Lesson 7.3A M.3.G.2 Apply, using appropriate units, appropriate formulas (area, perimeter, surface.

Geometry Review. Name that Shape… Rectangle Name that Shape… hexagon.

What shape is this? A. octagon B. parallelogram C. square D. hexagon E. triangle REMEMBER: A hexagon has 6 sides.

Quadrilateral Classification Tree.

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.

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

Shaded Area/ Word Problems

Find the area of the triangle.

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.

By. Circle Draw a circle in the box Tell about its attributes: sides, angles, whether or not it’s a polygon. Add any additional information you know about.

Exploring Polygons. What are polygons? A polygon is a closed figure made by joining line segments, where each line segment intersects exactly two others.

Polygons Lesson What is a polygon? A polygon is a simple, closed, two-dimensional figure formed by three or more line segments (sides). Closed?

Our learning objectives today: To be able to recognise and name 2D shapes. To know about quadrilaterals.

Area & Perimeter. SHAPE OVERVIEW Rectangle Triangle Hexagon Trapezoid Square Parallelogram Pentagon Circle.

Reflectional Symmetry The image is exactly the same on both sides… therefore it is reflected across the line of symmetry. WARM UP: Draw lines of Symmetry.

Polygon - a 3 or more sided closed figure

What is a polygon? a closed figure made by joining line segments

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

POLYGONS & QUADRILATERALS

Bellwork Add the special formula for the equilateral triangle below to your toolbox. Find the area of an equilateral triangle with a side of.

Area of Quadrilateral.

Areas of trapezoids, rhombuses, and kites FORMULAS Trapezoid: (1/2)(h)(b+b) Rhombus: (1/2)d *d Kite: (1/2)d *d.

AREA OF A REGULAR POLYGON SECTION FIND THE AREA OF THE TRIANGLE BELOW 6 in.

Pre-Algebra Unit 5 Geometry Quiz 5B Review. Name that Quadrilateral - I have 2 pairs of congruent, parallel sides.

10-1 Areas of Parallelograms and Triangles

Area of Parallelograms, Triangles, Trapezoids, Rhombuses, and Kites

Reviewing angles and polygons

Geometry Polygons next © Math As A Second Language All Rights Reserved 2.G#1.

Area. Triangles and rectangles are examples of polygons. A polygon is a closed plane figure formed by three or more line segments. Each line segment forms.

PLOYGONS!! By:edilberto zeferino!!. Right Triangle Equilateral Triangle.

Half the circumference

Area of Circles Half the circumference Parallelogram A = b h radius.

P RACTICE AND R EVIEW. 13 × (40 + 6) 87 − 9 5 × 9 40 × 10.

Area of shapes and in a coordinate plane Chapter 8-3.

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

Areas of Polygons FORMULAS Rhombus: (1/2)d *d Kite: (1/2)d *d.

What will we accomplish? We will review the naming of polygons. We will classify quadrilaterals by their characteristics.

6-7 Polygons in the Coordinate Plane. Classifying Quadrilaterals Given the coordinates of the vertices, how would you determine if the quadrilateral is…

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

J.Byrne Types of Triangles pg 1  The sum of the angles in any triangle is 180°  Equilateral Triangle  3 sides and 3 angles are equal  Isosceles.

Classifications Bowen’s Class. Quadrilateral Any four sided polygon Any four sided polygon.

Find the Area of the Square

Area of 2-Dimensional Figures

Objective: To find areas of regular polygons

Objective: To find the perimeters and areas of similar figures.

Polygons What? Closed figure; 3 or more line segments that do not cross Name a Polygon Count the number of sides 3 - Triangle 4 - Quadrilateral.

Exploring Polygons.

Classify Polygons Name: ____________________________________

Bell Ringer Find the Area! 8 cm

Names & Properties of 2D Shapes

Area of Parallelogram.

Area & Perimeter.

Quadrilaterals and other Polygons

Presentation transcript:

Area of Polygons

Remember your special right triangles

And… SOHCAHTOA

Area Formulas

Find the EXACT area of the rectangle below 2 ft 30 o

Find the EXACT area of the square below

Find the approximate area, to the nearest tenth, of the rectangle below. 8 yd 37 o

Find the approximate area, to the nearest tenth, of the parallelogram below. 30 in 18 in 50 o

Find the approximate area, to the nearest tenth, of the trapezoid below. 18 in 8 in 55 o

Find the approximate area, to the nearest tenth, of the trapezoid below. 26 in 14 in 20 in

Find the approximate area, to the nearest tenth, of the rhombus below. 12 in 20 in

Find the area of the regular hexagon below 10 cm

Find the area of the regular pentagon with the given information below 4 in 5 in

Find the area of the regular octagon with the given information below: 8 yd