Question

How to represent root 7.9 on the real line

Answer 1

$\huge\mathbb{A~N~S~W~E~R}$

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1. Draw AB=7.9 units

2. Now extend AB till C such that BC = 1 unit.

3. Now mark centre of AC at F and taking AF as radius and F as centre draw a semi circle till C.

4. Now extend B to the semi circle such that it meets the circumference to D.

5. Hence BD=

$= \sqrt{7.9}$

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