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Question
In the figure AB = 10 cm, ∠B = 30°, DC = 5 cm
AD = ______.
Options
10 cm
20 cm
5 cm
7.5 cm
MCQ
Fill in the Blanks
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Solution
AD = 5 cm.
Explanation:
In ΔABD, right-angled at D
use sin 30° = `(AD)/(AB)`
= `1/2 = (AD)/10`
= `AD = 10 xx 1/2`
= 5 cm
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