Show:
Classifying Triangles
Angles, Angles, & Angles
SSS, SAS, ASA, & AAS Congruence
Miscellaneous
Isosceles and Equilateral Triangles
100
No Equal Sides or Angles
What is Scalene
100
Number of angles in a triangle.
What is 3 angles
100
Side Side Side
What is SSS
100

One angle on a triangle is 43 degrees, the second angle is 79 degrees, how many degrees is the third angle? 

58 degrees

100
Has two congruent sides called legs.
What is Isosceles Triangle
200
Two equal sides and angles
What is Isosceles
200
The value of all three angles in a triangle added together.
What is 180 degrees
200
If two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent.
What is SAS
200

Josh drew an acute isosceles triangle. He had an angle that measured 90 degrees and 2 sides that were equal. What was wrong with his drawing?

What is he had a right angle in a triangle that needs 3 angles that are each < 90 degrees.

200
All three sides are congruent.
What is Equilateral Triangle
300
All sides and angles are equal.
What is Equilateral
300
When two lines intersect the opposite angles are equal to each other.
What is vertical angles
300
If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then these two triangles are congruent.
What is ASA
300

This triangle has 2 sides the same length and one right angle. Classify by both angles and sides. .

What is a right isosceles triangle?

300
All three angles equal 60 degrees.
What is Equiangular.
400
Has an angle whose measurement is greater then 90 degrees.
What is Obtuse
400
The little box in the corner of a triangle.
What is 90 degrees.
400
If two angles and the non-included side one triangle are congruent to two angles and the non-included angle of another triangle, then these two triangles are congruent.
What is AAS
400

This triangle is an acute obtuse triangle. Is this possible? Why or why not?

What is not possible, because an obtuse triangle has one angle >90 degrees and an acute triangle has all 3 angles < 90 degrees.

400
The non congruent side of an isosceles triangle.
What is a base
500
All angles measure less then 90 degrees.
What is acute.
500
An exterior angle of a triangle is equal to the sum of the opposite interior angles.
What is Exterior Angle Theorem
500
If three sides of one triangle are congruent to three sides of another triangle, then these two triangles are congruent.
What is SSS
500

An equilateral triangle can be an isosceles triangle. True or false, and why?

What is true, because an equilateral triangle has 3 equal sides. An isosceles triangle has ATLEAST 2 equal sides, which means it could also have 3 equal sides.

500
The point where two congruent legs come together.
What is Vertex Angle