question_answer 1)

With \[{{l}_{1}}\] of length 6.1 cm as diameter, draw a circle. TIPS Firstly, divide the given diameter into two equal parts i.e. draw its perpendicular bisector, then take any one part as radius and common point of both part as centre, draw a circle which gives the required circle of diameter 6.1 cm.

Answer:

                To draw a circle, of diameter 6.1 cm, we use the following steps: Step I Draw a line segment \[{{l}_{2}}\] of length 6.1 cm. Step II With P as centre, using compasses, draw an arc of a circle (here, we can draw a circle also) with radius more than half of the length of \[S\to \]. Step III With the same radius and with Q as     centre, draw another circle using compasses. Let it cut the previous circle at M and N.                    Step IV Now, join \[Y\to \] It cuts \[M\to \] at O.        Therefore, \[E\to \] is the perpendicular bisector of \[T\to \] and O is the mid-point of \[R\to \]. Now, with O as centre and OP or OQ as radius, draw a circle. Thus, it is a circle whose diameter is the line segment \[S\xrightarrow[{}]{{}}\]. Hence, the circle PMQN is the required circle.