trigonometric question
find its hight BA
no wrong answer.w rong answers reported by me(10th ,exam cbse board 2020)
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Answer:
BA = 40 m
Step-by-step explanation:
SIN 30° = BC/BA
1/2 = 20/BA. [SIN 30° = 1/2]
Therefore, BA = 40 m [Cross multiply]
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