Retest Policy

REMEMBER

Students who score below 80% on any summative assessment (major test) will have at least one opportunity to retest for a maximum grade of 80%. The higher of the two grades shall be recorded for the student. The student must come in during tutorials for tutoring over the material before retaking the test.

Tuesday, December 6, 2011

Composite figures-Tue 12/6/11 and Wed 12/7/11

LINK to textbook help for composite figures


We are currently covering composite figures. See example below for help. Homework is at the bottom of the page.

 

Composite figures: A figure (or shape) that can be divided into more than one of the basic figures is said to be a composite figure (or shape).
For example, figure ABCD is a composite figure as it consists of two basic figures.  That is, a figure is formed by a rectangle and triangle as shown below.

The area of a composite figure is calculated by dividing the composite figure into basic figures and then using the relevant area formula for each basic figure.


Example 11

Find the area of the following composite figure:

Solution:
The figure can be divided into a rectangle and triangle as shown below.




So, the area of the composite figure is 222 cm2.

HOMEWORK


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