Answer:
BD = 164.92 m
CD = 177.34 m
Explanation:
sine rules:
AB : sin ∠D = BD : sin ∠A
90.52 : sin 31.23° = BD : sin 109.16°
BD = 164.92 m
cosine rules:
CD² = BD² + BC² - 2(BD)(BC) cos ∠B
= 164.92² + 235² - 2(164.92)(235) cos 48.88
= 31448.49
CD = 177.34 m