Circles & Areas

Sunday 27 October 2013

Objectives:

• Review of circle terms, circumference and area.
• Calculate the areas of more complicated shapes
• Areas of rectangles and triangles
• Definition and areas of parallelograms and trapeziums

Circles:

Copy the diagram and label each of [AB], [CD], [EF], [GH]

 Answer is here.

Copy the picture below, label the green and blue sections:

Answer is here.

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Circle: Area and circumference

Area of a rectangle:

 

Area of a triangle:

More: Area of a triangle inside a rectangle

Area of a trapezium:

Note: this shape is also known as a trapezoid.

Area of a parallelogram:

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Bring your protractors tomorrow please! 

 

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