Question

construct a circle of radius 3.5cm draw its longest chord and construct its its perpendicular bisector. Pls help me.

NOTE: draw its longest chord. ​

Answer 1

Answer:

Draw a circle of radius r=3.5cm

Mark an arc of 6cm from any point on circle on the circumference.

Let M be the midpoint of chord AB

(Line passing through M and center O is the perpendicular bisector of chord AB)

MB=3cmOB=3.5cm

(OM)

2

+(MB)

2

=(OB)

2

OM=

(OB)

2

−(MB)

2

OM=

(3.5)

2

−3

2

OM=1.8027cm