Answer
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Hint: An obtuse angle is a type of angle which is always greater than ${90^o}$but less than${180^o}$. Obtuse angle lies between ${90^o}$and${180^o}$.
Complete step-by-step solution:
Let us take an angle greater than${90^o}$but less than${180^o}$i.e. ${150^o}$
Step-1: Draw a straight line or a line segment$AB$, which is one of the arms of the angle that is to be constructed.
Step-2: Point$A$represents the vertex of the angle.
Step-3: Place the centre of the protractor at $A$and along the arm$AB$.
Step-4: The protractor has two-way marking. We consider the scale which has $0$degrees near point $B$for construction.
Step-6: Mark point $C$ on the ray (CA) which is formed by constructing an angle of$150$degree.
Step-7: Therefore, $\angle CAB = {150^o}$which is the required angle.
Note:When two rays meet at a point, they form an angle. The two rays are called the arms of the angle, and the point is called the vertex.
Complete step-by-step solution:
Let us take an angle greater than${90^o}$but less than${180^o}$i.e. ${150^o}$
Step-1: Draw a straight line or a line segment$AB$, which is one of the arms of the angle that is to be constructed.
Step-2: Point$A$represents the vertex of the angle.
Step-3: Place the centre of the protractor at $A$and along the arm$AB$.
Step-4: The protractor has two-way marking. We consider the scale which has $0$degrees near point $B$for construction.
Step-6: Mark point $C$ on the ray (CA) which is formed by constructing an angle of$150$degree.
Step-7: Therefore, $\angle CAB = {150^o}$which is the required angle.
Note:When two rays meet at a point, they form an angle. The two rays are called the arms of the angle, and the point is called the vertex.
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