We have to construct an angle of $45 °$ . What should be the correct sequence of the steps given below?
Draw a ray OA.
Look for the scale whose $0 °$ mark lies on OA.
Join OB using scale.
Find $45 °$ on the scale and mark a point on the line above $45 °$ .
Place the protractor in such a way that, its base line lies along OA and its central point lies at O.
Name the point as B.

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$1, 2, 3, 4, 6, 5$

$1, 5, 2, 4, 6, 3$

$1, 5, 6, 4, 2, 3$

$1, 2, 3, 4, 5, 6$

answer is A.

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Detailed Solution

The steps for drawing an angle of $45 °$ are:

Draw a ray OA.
Place the protractor in such a way that, its base line lies along OA and its central point lies at O.
Look for the scale whose $0 °$ mark lies on OA.
Find $45 °$ on the scale and mark a point on the line above $45 °$ .
Name the point as B.
Join OB using scale.

Now angle BOA is of $45 °$ .

Hence, option A is correct.

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