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Draw an obtuse angle. Bisect it. Measure each of the angles so obtained.
To do:
We have to draw an obtuse angle, bisect it and measure each of the angles so obtained.
Solution:
Steps of construction:
(i) Draw an angle $ABC$ which is obtuse i.e., more than $90^o$.
(ii) With centre $B$ and a suitable radius draw an arc meeting $BC$ at $E$ and $AB$ at $F$.
(iii) With centre $E$ and $F$ and radius more than half of $EF$ draw arcs intersecting each other at $G$.
(iv) Join $BG$ and produce it to $D$.
$BD$ is the bisector of $\angle ABC$.
On measuring each part, we find each angle is equal to $50^o$.
Updated on: 10-Oct-2022
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