MHB How Can the Sine Rule Help Determine Lengths in Irregular Shapes?

Thread starter ketanco
Start date Nov 17, 2018
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Angles Length

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The sine rule, or law of sines, can be applied to find unknown lengths in irregular shapes by relating the ratios of the lengths of sides to the sines of their opposite angles. In the given irregular shape, recognizing that angles EAD and EDA are equal is crucial for applying the sine rule effectively. By establishing the necessary relationships between the sides and angles, one can solve for the unknown length x. This method is particularly useful in complex geometries where traditional methods may not suffice. Utilizing the sine rule simplifies the process of determining lengths in irregular shapes.

Nov 17, 2018

ketanco

Hello,
What is the value of x in the attached?
obviously angle EAD = EDA but then what?
the shape is irregular. View attachment 8599

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Nov 17, 2018

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ketanco said:

Hello,
What is the value of x in the attached?
obviously angle EAD = EDA but then what?
the shape is irregular.

How about using the sine rule, also known as the law of sines?

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