First draw a 90 degree angle then bisect it . After bisecting each angle's value is 45 degree .Then bisect the two 45 degree angles . therefore 90 degree angle is divided into 4 parts

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Aditya Kasliwal answered this

90 degree ka aap triangle banahe aur fir ousko 90?2=45

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Saisruti Nayak answered this

Hope it helps

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Prayagraj Mohanty answered this

first draw a 90 degree angle.

then bisect the angle. now the value of each angle is 45 degrees and you have made 2 equal parts.

then bisect both the 45 degree angles. Now the angles will each be of 22.5 degrees. now you have divided the 90 degree angle into 4 equal parts each of 22.5 degrees.