Congruent and Similar Triangles
In triangles \(ABC \) and \(DEF\), if we know that \( AB = EF, BC = DE \) and \( \angle ABC = \angle DEF \), are the triangles congruent?
by
Calvin Lin
In the above diagram, \(x=21,\) \(y=14,\) \(\alpha={35}^\circ,\) and \(\beta={75}^\circ.\) Which condition would mean that the two triangles are similar?
Note: The above diagram is not drawn to scale.
by
Gene Keun Chung
In the adjoining figure, \(XY\) is parallel to \(AC\). If \(XY\) divides the triangle into two halves with equal area, compute \(\dfrac{AX}{AB} \).
by
Rayyan Shahid
Did you know you can approximate the diameter of the moon with a coin \((\)of diameter \(d)\) placed a distance \(r\) in front of your eye?
If the distance between the moon and your eye is \(R,\) what is the diameter of the moon?
by
Lakshan Dumpa
Triangle \(\triangle ABC\) is similar to \(\triangle DEF\), and the ratio of their areas is \(9:25.\) If the length of \(\overline{DE} \) is \(60,\) what is the length of \(\overline{AB} \)?
by
Perry Ellis