The Area Of Any Triangle is a great worksheet for practicing Sine and Cosine rule and the formula Area = 0.5abSin©. It is aimed at grade 7 - 9 students.
There are four different types of questions.
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Simple - given two sides and the included angle, use the formula to find the area.
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Given the area, find a side or an angle.
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Harder - decide which angle you need to be able to find the area and then use the Sine rule or Cosine rule to find it first.
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Applications - finding the area and then using the area to find the shortest distance from one vertex to the opposite side.
Recently added - An extra page with some level 9 questions involving surds and the are of a parallelogram - a couple of nice questions I found which you may find useful.
Answers are included
Please leave feedback, particularly if you like my work - thank you
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