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Q.

How do you draw a 900 angle?

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a

By drawing a perpendicular to a line from a point lying on it

b

By bisecting the angle between 120and 600

c

By bisecting a 900 angle

d

By drawing multiples of 450 angle

answer is B.

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Detailed Solution

A 90-degree angle lies exactly between a 120-degree angle and a 60-degree angle.

Hence, follow the below steps:

  • Draw a line segment OA
  • Taking O as centre and using a compass draw an arc of some radius, that cuts OA at P
  • Taking P as a centre and with the same radius draw another arc, that cuts the first arc at Q
  • Taking Q as a centre and with the same radius draw an arc, that cuts the first arc at R
  • Now taking Q and R as centres and radius greater than the arc QR, draw two arcs, such that they intersect at S.
  • Join OS such that ∠AOB is a 90-degree angle


 

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How do you draw a 900 angle?