Question

class 9 maths answer​

Answer 1

Answer:

Step-by-step explanation:

Hope it help

Answer 2

Answer:

On number line, $BE=\sqrt{9.3}$

Step-by-step explanation:

Given to represent $\sqrt{9.3}$ on the number line.

• For this, take a scale and draw a line AB = 9.3cm.
• From point B, measure 1cm and mark it as point C.
• Take a compass, measure any length, approximately more than half of AB and draw the arcs from both ends, below and above the line.
• Join the two intersecting points of the arcs, that passes through the midpoint of AC.
• Mark the midpoint of AC as O.
• Measure AO, and with point O as centre, draw a semi-circle.
• From point B draw a perpendicular, touching the semi-circle and mark it as point D.
• Measure the BD and draw an arc from point D onto the number line.
• Mark this point as E
• The distance on the number line from B to E is $\sqrt{9.3}$.

So, on number line, $BE=\sqrt{9.3}$

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