1What is the question we ask ourselves when we should first construct any triangles?
- We should ask ourselves "how many sides there are in the question?"
- We should find out what tool we should use.
2What are the three rules of constructing triangles?
- Angle, Angle, Angle
- Side, Side, Angle
- Angle, Angle, Side
- Side, Side, Side
- Side, Angle, Side
- Angle, Side, Angle
3Do we start from the middle letter?one
4When we have to find any missing angle in a triangle, what is the rule we should use?
The sum of angles rule.
5A triangle with two equal sides and two equal angles is called an ____
Isosceles triangle
6A triangle with one right (90°) angle is called a _____
Right triangle
7A triangle that has all of its sides and angles equal is an _____
Equilateral triangle
8A triangle with a right angle and two equal sides and two equal angles is called a ______
Right isosceles triangle
9What is a height?
It is a segment drawn from any vertex perpendicular to its opposite side.
10What's the interesting point of all the heights called?
It's called orthocenter.
11What's a median?
It is a segment drawn from the vertex to the midpoint of its opposite side.
12What's the interesting point of the medians called?
It's called centeroid or center of gravity.
13What's the bisector of an angle?
It's a line drawn from the vertex that cuts the angle into two equal parts.
14What is the intersecting point of the bisectors of the angles in a triangle called?
It's called incenter.
15What is the intersecting point of the bisectors of the sides in a triangle called?
It's called circumcenter.
16What is the sum of all the angles in a triangle?
17What is the measure of the other two angles (other than the 90° one) each in a Right Isosceles triangle?
They measure 45° each.