Question

Construct the circumcircle of a triangle $ABC$ in which $AB=3cm,\angle B={78}^o$ and $BC=4.6cm$.

Answer 1

1. Draw the base $BC=4.6cm$. Construct ${78}^o$ at $\angle B$.

2. Mark $BC$ as $3cm$ from $\angle B$. Join $AC$.

3. Draw the perpendicular bisector of each sides of the triangle. The perpendicular bisector meet at a common point $O$.

4. From point $O$, keep it at any vertex of a triangle, take it as radii and draw the circumcircle.