Q.What does obtuse mean?
A.
When the angle is less sharp than the right angle.

Q.If I were to call any one of you an acute child, would you know what I meant?
A.
Yes, sir; one that looks out sharp, and tries to think, and pays attention to what is said to him; and then you would say he was an acute child.
[Footnote b: Mr.Chambers has been good enough to call the instrument referred to, a gonograph; to that name I have no objection.] [Footnote B: Desire the children to hold up two fingers, keeping them apart, and they will perceive they diverge at top and converge at bottom.] _Equi-lateral Triangle_.
Q.What is this?
A.An equi-lateral triangle.

Q.Why is it called equi-lateral?
A.Because its sides are all equal.

Q.How many sides has it?
A.Three sides.

Q.How many angles has it?
A.Three angles.
Q.What do you mean by angles?
A.The space between two right lines, drawn gradually nearer to each other, till they meet in a point.
Q.And what do you call the point where the two lines meet?
A.The angular point.