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Question
Draw a line segment of length `sqrt5` cm.
Solution
Construct a right-angled triangel OAB with
OA = 2 cm,
∠OAB = 90° and
AB = 1 cm
Using OB2 = OA2 + AB2
OB2 = 22 + 12
OB2 = 4 + 1
OB2 = 5
OB = `sqrt5`
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