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Published byUrsula Roberts
Modified over 4 years ago
The distance around an enclosed shape is called the perimeter. The amount of space enclosed inside a shape is called the area.
Area of a rectangle base height Area of rectangle = base × height
Area of a triangle base Area of triangle = ½ × base × height height
Area of a parallelogram A parallelogram can be made into a rectangle. base height Area of parallelogram = base × height
Area of a trapezium Two identical trapeziums can be made into a parallelogram. a h Area of parallelogram = ½ (a + b) h b b a
10 8 Examples 1 Find a the perimeter b the area of the shape. All lengths are in cm. 7 6 10 8 7 6 2 3 a b
10 cm 3 cm Examples 2 Find the area of the parallelogram.
6 cm 4 cm Examples 3 Find the area of the triangle.
Examples 4 Find the area of the trapezium. All lengths are in cm. 5 3 2
Examples 5 The area of the trapezium is 24 cm 2. Find the value of x. 2x+3 4 cm x
Yes you do need to write this.
Space and Shape. rectangle Shape ? trapezium.
Area of Common Shapes.
Circle – Formulas Radius of the circle is generally denoted by letter R. Diameter of the circle D = 2 × R Circumference of the circle C = 2 × × R (
Area & Perimeter Area of a rectangle = Area of a triangle = Area of a parallelogram = Area of a trapezium =
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.
Area & Perimeter Review Rectangles, Triangles & Parallelograms Next.
Objective: find the area of geometric figures and shaded regions. What area formulas must be memorized?
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.
Area and Perimeter.
Area & Perimeter √ I CAN find area and perimeter of basic geometric figures.
Area of shapes © T Madas.
Perimeter and Area o Perimeter is the distance around the outside of a flat object. o Area is the amount of surface space that a flat object has.
Extension. Calculate the area and perimeter of each of these shapes. 5cm 9cm 3cm 2cm 10cm 7cm 1cm 7cm 2cm 12cm 13cm
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.
The perimeter of a triangle is the measure around the triangle = a + b + c.
This presentation is based on KEY MATHS 7 (1) Press the LEFT mouse button to move on.
Rectangle The area of a rectangle is by multiplying length and height. The perimeter of a rectangle is the distance around the outside of the rectangle.
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