Question

Construct circumcircle and incircle of an equilateral $△XYZ$ with side $6.3$ cm.

Answer 1

Draw a line segment $YZ=6.3$ cm.

Open compass $6.3$ cm and draw curve from point $Y$ and $Z$ respectively these curve cut each other at point $X$.

Join $X$ to $Y$ and $Z$.

Then given figure is equilateral triangle $6.3$ cm.

Draw a curve at point $Y$ and $Z$ and bisect $\angle XYZ$ and $\angle XZY$

The both bisector cut each other at point $O$.

Draw a circle at point $O$, then given circle is required circle.