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Question
AB ⊥ BC, AC = 20 cm, CD = 5 cm, ∠ACB = 60°, AE = ______.
Options
`10sqrt3` cm
`(10sqrt3 + 5)` cm
`(10sqrt3 − 5)` cm
15 cm
MCQ
Fill in the Blanks
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Solution
AB ⊥ BC, AC = 20 cm, CD = 5 cm, ∠ACB = 60°, AE = `bbunderline((10sqrt3 + 5) cm`.
Explanation:
In triangle △ACB, using ∠ACB = 60° and AC = 20 cm,
get AB = `10sqrt3`cm.
Since DE = CD = 5 cm and AE = AB + DE.
AE = `10sqrt3` + 5 cm.
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