Question-206729

Question Number 206729 by mr W last updated on 23/Apr/24

Answered by A5T last updated on 23/Apr/24

\frac{s i n 84}{A D} = \frac{s i n 54}{A C} \Rightarrow A D = \frac{A C s i n 84}{s i n 54} \dots (i)

\frac{s i n (?)}{A D} = \frac{s i n (54 - ?)}{B D = A C} \Rightarrow A D = \frac{A C s i n (?)}{s i n (54 - ?)} \dots (i i)

(i) & (i i) \Rightarrow \frac{s i n 84}{s i n 54} = \frac{s i n (?)}{s i n (54 - ?)} \Rightarrow ? = 30 °

Commented by mr W last updated on 23/Apr/24

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