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Work out the area of the triangle. Give your answer to 1 decimal place. ½ (13)(12) sin (120). =.

Maths revision video and notes on the topic of trigonometry, finding the area of non right angled triangles.

Продолжительность: 11:15
Опубликовано: 30 апр. 2020 г.

Продолжительность: 3:54
Опубликовано: 4 февр. 2016 г.

The triangle is assumed to contain a right angle and so the area is calculated by halving the base times the height. Using inverse sine instead of sine of the ...

Продолжительность: 6:58
Опубликовано: 6 янв. 2016 г.

To calculate the area of any triangle the lengths of two sides and the angle in between are required. Example.

Продолжительность: 19:04
Опубликовано: 9 июн. 2020 г.

These videos are made by Maths Genie. Be sure to visit his website for top-quality GCSE and A Level revision resources. The Sine Rule · The Cosine Rule