Trigonometry

Consider the following diagram.

a

First, find the length of $CD$`C``D` correct to 2 decimal places.

b

Then, find the length of $AC$`A``C` correct to 2 decimal places.

c

Hence, find the length of $AD$`A``D` correct to two decimal places.

Easy

Approx 4 minutes

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Apply trigonometric relationships, including the sine and cosine rules, in two and three dimensions

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