Area of triangle.

Slides:

Advertisements

Similar presentations

Area and Perimeter.

Advertisements

Area of Common Shapes.

AREA & PERIMETER Created by Miss Mott. AREA What is area? Area is the amount of ____________ that an object takes up. Area is measured in _____________.

Area & Perimeter By, Jennifer Sagendorf ITRT – Suffolk Public Schools.

Perimeter and Area.

8cm 5cm Area = 8 x 5 = 40cm 2 A parallelogram can be split up into a rectangle and 2 triangles – each with the same area. 10cm 5cm.

Today, I will learn the formula for finding the area of a rectangle.

Area & Perimeter Review Rectangles, Triangles & Parallelograms Next.

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

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

Area of Quadrilaterals and Triangles. What is a quadrilateral? Any polygon with four sides and four vertices (or corners) All sides must be straight.

Area - Revision The area of a shape is simply defined by : “the amount of space a shape takes up.” Think of a square measuring 1 cm by 1cm we say it is.

Do Now. Homework Solutions 1)c 2 – 26c – 56 = 0 (c – 28)(c + 2) = 0 {-2, 28} 2)n 2 + 4n – 32 = 0 (n + 8)(n – 4) = 0 {-8, 4} 3)h 2 + 2h – 35 = 0 (h + 7)(h.

© 2008 Pearson Addison-Wesley. All rights reserved Chapter 1 Section 9-3 Perimeter, Area, and Circumference.

Calculating the area of a TRIGLE AN.

S3 BLOCK 8 Area and volume Area Learning Outcomes

Area Learning Outcomes I can find the area of the following 2D shapes.  Rectangle  Triangle  Trapezium  Parallelogram  Circle S3 BLOCK 8 Area and.

This presentation is based on KEY MATHS 7 (1) Press the LEFT mouse button to move on.

What is area? The amount of space that a figure encloses

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.

Perimeter & Area Lessons 19 & 20.

S3 BLOCK 8 Area and volume 1. Area I can find the area of the following 2D shapes.  Rectangle  Triangle  Trapezium  Circle.

The distance around an enclosed shape is called the perimeter. The amount of space enclosed inside a shape is called the area.

Perimeter Of Shapes. 8cm 2cm 5cm 3cm A1 A2 16m 12m 10m 12cm 7cm.

What is area? The amount of space that a figure encloses The number of square units that covers a shape or figure. It is two-dimensional It is always.

Areas involving rectangles and triangles For each rectangle you must be able to spot the length and width For each triangle you must be able to spot the.

Perimeter of Rectangles

What are these shapes? squarecircletrianglerectangle How many sides do each have? How many points do each have?

Area Volume Measures a given space Length and Width 2-D 3-D Length times width L x W Length times width time height L x W x H Measures the space of a flat.

Mensuration Objective Perimeter and area of shapes made from triangles and rectangles.

Area Area is the amount of surface inside a closed boundary.

Area & Perimeter An Introduction. AREA The amount of space inside a 2-dimensional object. Measured in square units cm 2, m 2, mm 2 Example: 1 cm 2 cm.

Area & Perimeter. Page ________ of Notebook Title: Area and Perimeter Title: Area and Perimeter Objective: Find Area and Perimeter Objective: Find Area.

Perimeter and Area Formulas.  Perimeter is the distance around an object. It is easily the simplest formula. Simply add up all the sides of the shape,

Area of Regular and irregular polygons Mrs. Korchmaros.

Surface area of a cylinder Imagine a cylinder opened out Rectangle Circle.

Perimeter, Area and Volume Presented by Bill Haining Functional Skills L1.

Area of a Triangle These two triangles are identical.

Area of a Rectangle = base x height

THE AREA OF A SHAPE.

The size of a surface in square units

Area of Composite Figures

1 3 2 Maths 3:Perimeter, Area and Volume By: Bill Haining.

LESSON 31 Areas of Rectangles.

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

Area of triangles.

Area and Volume Area is the amount of space contained in a two-dimensional figure Volume is the amount of space in a three-dimensional figure.

How to find the area of a parallelogram.

two-dimensional shape.

Area of triangles.

By, Jennifer Sagendorf ITRT – Suffolk Public Schools

Area of rectangle.

Area Formula of a Square?

Cost of fencing, leveling and cementing

Area Learning Intentions

SPLITTING OF COMBINED SHAPES

Cost of Levelling.

Area and Perimeter.

Area and Perimeter Review

Area & Perimeter.

Area and Perimeter.

By- Sabrina,Julianna, and Killian

What is area? The amount of space that a figure encloses

Area and Perimeter.

Area and Perimeter.

What Is Area ? Area is the amount of space inside a shape: Area Area

Presentation transcript:

Area of triangle

Area measures the surface of something

To find out how much shape is inside we can count the squares. The area of a shape is the amount of space inside it. The area of the shape is 18cm2.

Area of a Triangle 3 4 Finding the area of a triangle is different.

Area of a Triangle Sometimes it makes it easier to remember if you can imagine it like this: 3 4 A triangle is half of a rectangle or square. This is because the base (4) x the height (3) would be the same as the length x the width of a rectangle.

8 5 4 Example 1: Find the area of right triangle whose height is 8cm and base is 5cm. Solution: Given : Base = 5cm, Height = 8cm 8 5 4 = 5 x 4 = 20 cm

8 5 4 Example 1: Find the area of right triangle whose height is 12cm and base is 8cm. Solution: Given : Base = 8cm, Height = 12cm 8 5 4 = 4 x 12 = 48 cm

Find the area of these right triangles. 6 8 3 4